Martel-electronics 135 User Manual

MODEL 130/135 DC/Frequency Calibrator User’s Guide

Menu Selection The Model 130/135 calibrator has several functions that require additional information once the function has been selec

voltage falls below 4.65 volts, a warning message is displayed is displayed approximately every minute. When the voltage falls bel

CE/ZERO Key When the calibrator is in the output mode and you press any of the numeric keys (0-9), the keystrokes will be displayed unti

Option Key The OPT key is used to activate the external module that is attached to the feature connector of the Model 130/135 calibrator. When the O

If the module is not capable of operating in the mode requested, an error message will be displayed. The operation of the Pressure Module

If no tags have been entered, the display will indicate: If calibration is complete, the display will indicate “Pass” or “Fail” instead

If “Review” was selected, the test points would be displayed. Press the INC/DEC keys to scroll through additional points. Press ENT or CE to ret

step the calibrator output through the calibration points. Once the desired results are achieved, press AUTO as indicated on the calibrator display.

If “Done” is selected, the calibrator will prompt “Test Finished” and the operator will be prompted to enter his/her ID number. The operator wil

If the instrument being calibrated has a pressure output, no special action is required during the automatic test. The pressu

Beta Model 130 Calibrator See back cover for Model 135 DC/Frequency Calibrator Model 130 ON OFF BAT CK CE ZERO V mV mA 7 4 1 .

When READY is being displayed, the applied pressure is within tolerance. You should wait until the actual pressure readings stabilize and th

If the input to the instrument cannot be generated by the calibrator, the calibrator will be configured for Manual output. An example migh

numeric keypad and then press ENT. If the closest you could get to the desired value was 9,950 GPM, you would enter this value and press E

Operator Setup The SETUP key activates the operator setup mode. This allows the operator to preset several convenience features to

LCD Vu (Adjust LCD viewing angle) The LCD viewing angle or contrast may be adjusted electronically for optimum viewing under various co

current scale or a user defined calibration point from a predefined list of calibration points. This feature allows the user to program th

the last calibration point is entered, the next screen will be: Enter the value in engineering units for the function you will be using that rep

Example #2: Programming a 3 point calibration for a 1-5 Volt input to a recorder. The calibration points entered would be: cal point #1 0

Owner (Enter owner’s name) The Model 130/135 calibrator contains a security feature that allows the owner to enter a name or other i

Press ENT if you are satisfied with the entry, or CE to cancel. If you press CE, the owner’s name will not be changed. If y

Table of Contents Introductions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 General Description

MfgTst (Enable manufacturing test routines) (Model 130 Only) This option enables several test routines used in the manufacturing, test, and

The input functions will return to displaying in engineering when the next input function is selected. Damp (Dampen input readings) This

The configuration would be: Input Zero = 4 Input F.S. = 20 Output Zero = 0 Output F.S. = 1500 If a pressure of 1478.7 PSI (98.85% of scale) is appli

Exit the Setup menu. The 130 will display the input in % ERR and the output in % Scale on exit from the setup menu. The 135 will now display

Input Functions Input functions are selected by pressing any of the function keys while the calibrator is in input mode. Functions available

and display in Hertz. The frequency measurement will be displayed with the maximum resolution. If the input frequency is below 5 Hz, the f

Pressure Module (Optional) The Pressure Module allows a Model 130/135 calibrator to make the precise pressure measurements required for

When the OPT key is pressed for the first after the calibrator is powered on, the calibrator reads the configuration and calibration data

Software versions prior to 03.35 use the 4°C conversion temperature. The factors used by the Pressure Module to convert from PSI to other engineering

alternating readings between pressure and milliamps. This may cause a barely perceptible slowing of response time of the readings. If the

Output Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Volts/Millivolts . . . . . . . .

Enter the local barometric pressure in the engineering units that are selected, and press ENT. The absolute pressure readings are

Safety Good safety practices should always be followed when using high pressures. Although liquids are considered non-compress

Trip Detect The trip detect feature is used in conjunction with the Ramp Function. Trip detect is a feature to aid in calibrating trip poi

To test the dead band of an alarm, first initiate a positive going ramp using the INC key and record the trip point. Next initiate

Input Reading in Percent of Scale This feature allows the input measurements to be displayed as a percent of scale rather than in eng

Output Functions Output functions are selected by pressing any of the function keys while the calibrator is in output mode. Output fu

achieved at all times. The internal microprocessor will automatically correct for any drift due to temperature or battery change. The mill

Enter the desired value between .25 V and 10.0 V and press ENT. The calibrator will set the output amplitude and then prompt for the freque

Ramp Function The ramp function provides an output ramp with adjustable rate and amplitude for volts, millivolts, and milliamps. When

DEC key to initiate the ramp from the ending value. If the trip detect is enabled, you must press the INC or DEC key twice. See the trip detect desc

Introduction General Description The Model 130/135 DC/Frequency Calibrators are compact, versatile, functionally styled calibrators. The

Loop Power Supply (Optional) The Loop Power Supply (LPS) is an option that provides 24 VDC to power a device under test. The LPS is ship

puts the calibrator in series with the 4 to 20 milliamp loop. Plug the test leads provided with the calibrator into the jacks mar

Application Notes Use of Transmitter Simulator With Power Source The purpose of this function is to simulate a 2-wire transmitter connecte

Use of Transmitter Simulator Without Separate Power Source The Model 130/135 Calibrator can be used to calibrate 2 wire, 4 to 20 mA transmitters wit

Turbine Meter Calibration Using the Totalize Function For flow transmitters designed for very low flow levels, it is frequently more convenient to ca

Turbine Meter Calibration Figure 4 Using Totalize Function with Turbine Meter Application Notes 130/135

Calibration of an Alarm Using Ramp and Trip Detect This example describes calibration of a current input alarm circuit. The calibrator should be con

7. Press the DEC key to ready the ramp at its ending (14 mA) value. 8. Press the Dec key again to start the Ramp. 9. Wait for the alarm to re

Calibration of mV to Current Converters This example assumes a 10 to 50 mV input and a 4 to 20 mA output. 1. Connect as shown in Figure 3. 2. Sel

Bipolar Frequency Calibration Figure 6 Pressure Module Figure 7 shows a typical connection for calibrating a loop powered pressu

Battery Charging Units are shipped with the internal batteries in an uncharged state. The calibrator battery charger is a wall plug-in type (se

Transmitter Calibration Using Loop Power Supply (LPS) Figure 8 Application Notes 130/135 56

Error Messages Entered value is out of range The value entered is outside of the allowable range for the current output function. Check

No external module present You pressed the OPT key and there is no external module attached to the calibrator. If there is a module atta

Service Information Return for Calibration, Recertification or Repair It is recommended that each calibrator be re-calibrated and/or recerti

Fuse Testing The calibrator employs fuses to protect the outputs and inputs in the event the calibrator is improperly connected to external circ

Service Information 130/135 61 Fuse Type/ Location Fuse No. Function Test Input/ Output Model 130 Model 135 Top PCB 130/135

Fuse Replacement Should it become necessary to change a fuse, take the following steps: 1. Turn the calibrator OFF. 2. Remove the 4 screws loc

Fuse type Littelfuse PN Beta PN 2AG 1/10 A 225.100 904114-003 2AG 1 A 225001 905002-001 2AG 1/4 A 225.250 905009-001 Model 130 Fuse Location Functio

5. Replace the blown fuse with a new one of the proper type. 6. Reassembly is essentially the reverse of the above procedure. Position

Model 130 Input/Output Fuses Diagram Model 135 Input/Output Fuses Diagram Model 130/135 Main Power Fuses Diagram Servi

Operation The Model 130/135 DC/Frequency Calibrators are user friendly and menu driven. A first time user can normally start opera

Warranty Martel Electronics Corp. (Martel) devices are warranted to be free from all latent defects in material workmanship under normal use

Specifications Input Specifications Function Range Resolution AccuracyB Volts 0-1 Vdc 10 µV ±0.005% RDG ±0.005A 0-10 Vdc 100 µV ±0.005% RDG ±0.005A

Output Specifications Function Range Resolution AccuracyB Volts 0-1 Vdc 10 µV ±0.005% RDG ±0.005A 0-10 Vdc 100 µV ±0.005% RDG ±0.005A Impedance: &l

General Input Impedance: Volts >10 megohms Millivolts >10 megohms Current 5 ohms nominal Frequency 1 megohm nominal Outp

Pressure Module Specifications Range Resolution Accuracy 0-.3 psig .0001 .03%FS± .07%RDG ± 1 digit 0-1 psig .0001 .03%FS± .07%RDG ± 1 digit 0-5 psig

Media Compatibility 0 to 100 psi ranges vac & abs, clean, dry non-corrosive air or gases. 300 psig and higher ranges, non-corrosive liquids or g

Notes Specifications 130/135 72

Notes Specifications 130/135 73

Notes Specifications 130/135 74

Index A Application Notes, 48-56 Auto Key, 8 Auto Mode, 45 B BatSave, 20 Battery Charge Time, 69 Charging, 2 Check, 6 Sa

This indicates the date in MMDDYY format of the last factory calibration. The example indicates the Model 130/135 was calibrated on A

F Frequency, 30, 42 Fuse Replacement, 62 Testing, 60 Type, 63 G General Description, 1 General Specifications, 69 H Humidi

K Keys Auto, 8 CE/Zero, 8 Inc/Dec, 7 Option, 9 % Key, 10 Ramp, 10 Setup, 19 SYS Key, 10 L LCD Vu, 20 Loop Pow

O Operation, 3-29 Operator Setup, 19 Option Key, 9 Output Auto Mode, 45 Frequency, 42 Functions, 41-47 Impedance, 69 Isol

Pressure Module, 55 Description, 32 Disconnected, 36 Electrical Connection, 32 Media Compatibility, 32 Over Pressure, 70 Pre

T Temperature Operating, 69 Storage, 69 Totalize, 31, 51-52 Transmitter Simulator, 48-49 Trip Detect, 38, 53-54 2-wire Simulator, 6

Beta Model 135 Calibrator See front cover for Model 130 DC/Frequency Calibrator Model 135 ON OFF BAT CK CE ZERO % V mV mA 7 4 1

Input/Output Selection The Model 130/135 calibrator has a single set of function keys for controlling both input measurements and output s