Checkline MT2013 User Manual

NOTE: This Calibrator is suitable to confirm the accuracy of tachometers only. A separate test unit is

required to verify that Tachometers will work at a specified distance from a target

WARNING This equipment is class I and must be earthed.

Output Din Connector (front view)

Pin 1 LED Drive (-ve)

Pin 2 Pulse Out ( 0 -– 2.5v)

Pin 3 5v in from "CT" (drives internal LED if present)

Pin 4 LED Drive (+ve)

Pin 5 Ov from "CT" (drives internal LED if present)

©

Compact Instruments Ltd November 1998

www.compactinstruments.co.uk

email: [e-mail]

Document No: 13713 iss 2

Operating Instruction

Model MT2013

Tachometer Calibrator

Phone: (0044) 0 1204-532544
Fax : (0044) 0 1204-522285

Tachometer Calibrator

Model MT2013

General description

The MT2013 Tachometer Calibrator has all the features required to calibrate any optical tachometer. In addition the

unit is equipped with inputs and outputs which enable the calibration of external VLS series optical sensors and all

functions of the connected Tachometer.

Display features & Specification

Display - LED 5 digit

Display functions - Auto ranging 0 – 99999 RPM and over range indication.

Strobe output ranges

FPM ranges - Strobe output (or VLS output) can be varied from 3 to 99,999 FPM in four ranges.

3 – 100 FPM

30 – 1000 FPM

300 – 10,000 FPM

3000 – 100,000 FPM

- A ten- turn potentiometer is provided for fine adjustment

Resolution minimum - ± 1 rpm

Accuracy - Typical <0.01% ± 1 digit

Timebase - 0.8 seconds update

Power requirements - 230V a.c.

Fuse type - 1.6A Anti surgez 20 X 5 mm

Max power rating - 4.2W

Standard kit – Includes an external LED strobe, Tachometer test lead and IEC mains lead with moulded plug

Calibration of optical tachometers

1 Connect the LED strobe lead to the DIN Output socket. The plug is of a latching type, so the button must

2 Set the Display switch to Int. The unit will now display the internally generated strobe frequency in FPM.

3 Using the FPM Range and Fine controls, the Tachometer under test can be checked for calibration at any

Calibration of VLS remote optical sensors

1 Connect the VLS under test to the Calibrator Ext jack socket. Fit the LED strobe to end of the VLS and set

2 Check that the on-target LED on the calibrator and the green LED on the VLS are illuminated.

4 Using the FPM Range and Fine controls, the VLS under test can be checked for calibration at any

The display will stop at 99999 and flash to indicate the over range condition. If no

input pulses are detected the on-target LED will turn off and, after twenty seconds,

the display will flash whilst showing the last reading

Operation of the Instrument

be depressed before trying to disconnect it. The LED strobe will fit directly onto the end of a Compact

Instruments Ltd tachometer. Other models may be pointed at the LED strobe and the position adjusted

until a reading is achieved and the on target LED is lit.

required frequency.

the Display switch to Ext.

required frequency. By switching the display between Int and Ext the calibration of the VLS can be verified.

Testing the remote input socket on a Compact Instruments Tachometer

1 The Calibrator is capable of simulating the output of a VLS remote optical sensor. Connect the appropriate

test lead to the DIN Output socket and connect the jack plug to the Remote Sensor Socket on the

receiving Tachometer.

2 Switch the tachometer on. The red Ext Power LED on the front panel should light to indicate that the

external sensor supply is present.

3 Using the FPM Range and Fine controls, the Tachometer under test can be checked for calibration at any

required frequency.