Martel Electronics DPM950 User Manual
Dpm 950, Dimensions, Connector sourcing guide
DIMENSIONS
All dimensions in mm (inches)
CONNECTOR SOURCING GUIDE
METHOD
Cable Mounting IDC Supplied With Product
Required F.S.R.
Ra
Rb
2V
Note
910k
100k
20V
Note
1M
10k
200V
Note
1M
1k
2kV
Note
1M
100R
200 A
LINK
1k
2mA
100R
20mA
10R
200mA
1R
µ
LINK
LINK
LINK
SCALING
Two resistors Ra and Rb may be fitted in order to alter the
full scale reading (F.S.R.) of the meter - see table.
The meter will need re-calibration.
19mm (0.75“) Digit Height
IDC Interface
Auto-zero
Auto-polarity
200mV d.c. Full Scale Reading (F.S.R.)
LED Backlight
Single Rail Version
Alarm Annunciator
DPM 950
3
½ Digit LCD Module
Very low current consumption results in a long battery life and makes the DPM 950 ideal for portable equipment. For low light viewing,
a long life LED backlight is fitted. The meter is housed in a robust carrier which can be bolted in place or panel mounted using the bezel,
window and clips provided.
* Supply voltage 5V nom.
** To ensure maximum accuracy, re-calibrate periodically.
Specification
Min.
Typ.
Max.
Unit
Accuracy (overall error) **
0.05
0.1
% (±1 count)
Linearity
±1
count
Sample rate
3
samples/sec
Operating temperature range
0
50
°C
Temperature s
100
ppm/°C
Supply
DPM 950
7.5
9
14
(V+ to V-)
DPM 950S
3.5
5
6.5
Supply current
DPM 950
150
(not including backlight) DPM 950S
500
Backlight current *
50
mA
Input leakage current (Vin = 0V)
1
10
pA
tability
voltage
Stock Number
Standard Meter
DPM 950
Single Rail Version
DPM 950S
V
A
µ
ON BOARD
SOLDER LINKS
SCALING RESISTORS
LP+
LP
-
V+
TEST
IN
HI
N
.C.
-5V
COM
REF
HI
XDP
DP3
V-
IN
LO
REF
LO
DP1
DP2
61.5 (2.42)
51.0 (2.01)
Ш5.7
(0.22)
24.5
(0.96)
24.0
(0.94)
39.0
(1.54)
Ш3.0
(0.12)
71.5 (2.81)
d
e
76.0 (2.99)
72.5 (2.85)
40.5
(1.59)
44.0
(1.73)
24.0
(0.94)
51.0 (2.01)
a
b c
Panel cut-out 72 x 40 (2.83 x 1.57)
Maximum panel thickness 3mm (0.12).
51 (2.01)
24
(0.94)
Display in Test Mode
REAR
VIEW
REAR
VIEW
2 3 4 1
12
11
DP1
DP2
DP3
Ra
Rb
NOTE
Ensure that Link 10 is open if fitting Ra.
a.
1.0 (0.04)
b.
2.0 (0.08)
c.
6.5 (0.26)
d. 11.5 (0.45)
e.
9.5 (0.37)
Ra
Rb
CAL