Martel Electronics DPM742-BL - Manual

PRODUCT DESCRIPTION
FEATURES
• 12.7
• 4-20mA Loop Powered Indication
• Low Volt Drop
•
•
• Bandgap Reference
• Wide Adjustment Range
• Auto-polarity on Display mm (0.5") Digit Height
Programmable Decimal Points
LED Backlighting (30mA @ 5V typ.)
• IP67 / NEMA 4X Protection via BEZ 700-IP
LASCAR ELECTRONICS LTD.
MODULE HOUSE
WHITEPARISH
WILTSHIRE
SP5 2SJ
UK
TEL: +44 (1794) 884567
FAX: +44 (1794) 884616
E-mail: [email protected]
LASCAR ELECTRONICS (HK) LIMITED
FLAT C, 5/FL., LUCKY FTY. BLDG.
63-65 HUNG TO ROAD
KWUN TONG
KOWLOON
HONG KONG
TEL: +852 2797 3219
FAX: +852 2343 6187
E-mail: [email protected]
DPM 742-BL
4-20mA Loop Powered Indicator with Backlighting
ELECTRICAL SPECIFICATIONS
Page 2 of 4 Page 2 of 4
Page 1 of 4 www.lascarelectronics.com
The DPM 742-BL gives an accurate, zero adjusted indication of a 4-20mA current. Calibration is by two multi-turn
potentiometers which allow sensitive adjustment of the instrument over a very wide range. Decimal points are jumper
link selectable.
LED
backlighting ensures excellent readability under low light conditions. Connection is via screw terminals. The module's
A low drift bandgap reference circuit ensures accurate readings over a wide temperature range.
low cost means it will suit high and low volume applications. This module is supplied with a plastic mounting bezel. A
waterproof seal to IP67 / NEMA 4X is achievable, using the optional BEZ 700-IP metal bezel.
Specification Min. Typ. Max. Unit
Accuracy (overall error) * 0.05 0.1 % (±1 count)
Linearity ±1 count
Sample rate 2.5 samples/sec
Operating temperature range 0 50 °C
Temperature stability 200 ppm/°C
Loop Volt Drop 5 5.6 V
Backlight supply voltage 4.75 5.0 ** V d.c.
Backlight supply current @ 5V d.c. 30 50*** mA
Full scale reading (@20mA) 0 1999 Count
Offset adjustment range -1900 +1900 Count
Supply current 4 20 mA
ORDERING INFORMATION
Stock Number
Standard Meter DPM 742-BL
IP67 / NEMA 4X Bezel BEZ 700-IP
LASCAR ELECTRONICS INC.
3750 West 26th Street
Erie
PA 16506
USA
TEL: +1 (814) 835 0621
FAX: +1 (814) 838 8141
E-mail: [email protected]
* To ensure maximum accuracy, re-calibrate periodically.
** An external series resistor is required above 5V, see Applications.
*** This specification linearly derates to 30mA @ 50°C.
PO Box 770, Londonderry, NH 03053 1-800-821-0023
www.martelcorp.com