Martel Electronics MS-420 User Manual

MINI-SOURCE PORTABLE CALIBRATOR

SPECIFICATIONS:

Output: 5 current steps Battery Life: 50 hours @ 4 mA out
(4, 8, 12, 16, 20 mA)

Accuracy:

±0.075 of full scale

Voltage Compliance:

Source: Internal 9 volt battery
Simulate: External supply - up to 30 Vdc clips on 8" leads.

Temperature Stability: 100 ppm/°C Size: 3.8" x 2.4" x 1.0"
Power Supply: 9 volt alkaline battery

TYPICAL APPLICATIONS:

• CHART RECORDER

• PANEL METER

• DATA ACQUISITION

• OTHER PROCESS INSTRUMENTS

Temperature Range:

Operating: 0° to 50°C

Storage: –25° to 60°C
Output Terminations: Two alligator

Unit furnished with standard belt clip.

+

(+) outputs (–)

4

8 12 16 20

milliamps

batt

ovl

simulate
source
off

MINI-SOURCE

MINIATURE CURRENT CALIBRATOR

–

output
select

CURRENT SIMULATE MODE (2 Wire Transmitter)

+

(+) outputs (–)

4

8 12 16 20

milliamps

batt

ovl

simulate
source
off

MINI-SOURCE

MINIATURE CURRENT CALIBRATOR

–

output
select

CURRENT SOURCE MODE

4-20 mA LOOP

Mini-Source
Acting as Current Source

4-20 mA LOOP

Mini-Source
Acting as 2 Wire Transmitter

–

Device Under
Calibration

+

–

+

Device Under
Calibration

–

+

300 ohm
Max. Load
Resistance

DC
Power
Supply

30 VDC
Max.

“The Ultimate Process Loop Tool”

Martel Electronics

P.O. Box 770, 1F Commons Dr., Londonderry, NH 03087

Tel: [phone] E-mail: [e-mail]