Martel Electronics MS-420 - Manual

milliamps
(+) outputs (–)
4
batt
8 12 16 20
ovl
simulate
source
off
output
select
MINIATURE CURRENT CALIBRATOR
MINI-SOURCE
milliamps
(+) outputs (–)
4
batt
8 12 16 20
ovl
simulate
source
off
output
select
MINIATURE CURRENT CALIBRATOR
MINI-SOURCE
MINI-SOURCE PORTABLE CALIBRATOR
SPECIFICATIONS:
Output: 5 current steps Battery Life: 50 hours @ 4 mA out
(4, 8, 12, 16, 20 mA) Temperature Range:
Operating: 0° to 50°C ±0.075 of full scale Accuracy:
Voltage Compliance:
Storage: –25° to 60°C
Source: Internal 9 volt battery Output Terminations: Two alligator
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 Unit furnished with standard belt clip.
TYPICAL APPLICATIONS:
• CHART RECORDER
• PANEL METER
• DATA ACQUISITION
• OTHER PROCESS INSTRUMENTS
CURRENT SOURCE MODE
CURRENT SIMULATE MODE (2 Wire Transmitter)
Martel Electronics
P.O. Box 770, 1F Commons Dr., Londonderry, NH 03087
Tel: 1-800-821-0023 1-603-434-8179 E-mail: [email protected]
4-20 mA LOOP
4-20 mA LOOP
300 ohm
Max. Load
Resistance
30 VDC
Max.
DC
Power
Supply
Mini-Source
Acting as Current Source
Mini-Source
Acting as 2 Wire Transmitter
+
+
+
+
+
– –
–
Device Under
Calibration
Device Under
Calibration
–
–
“The Ultimate Process Loop Tool”