Delta OHM DO 9721 - Probe Connection; Amplified Temperature Probes; Photometric and Radiometric Probes

PROBE CONNECTION
The instrument DO 9721 has two circular Din 45326 8-pole connectors (A and B) which allow the
connection of Delta Ohm probes for measuring temperature, type TP870, and probes for measu-
ring the photometric and radiometric intensity, type LP 9021.
The probe model must be chosen to suit the specific application; see the section on accessories.
The electrical connections to the probes are:
A) Amplified TEMPERATURE PROBES with a Pt100 platinum-sensitive element
B) Photometric and radiometric MEASURING PROBES
95
ENGLISH
6
1
4
7
3
5
8
2
Active probe Pt 100 TP 870 series
Probe TP 870 series Instrument input
Probe Pt 100 TP 870 series input
7
3
5
6
1
4
8
2
DO 9721
BA
+5V
7
OUT
2.375 mV/°C
1
GND
6
-5V
8
-
5V
8
IN
2.375 mV/°C
1
GND
6
+
5V
7
6
1
4
7
3
5
8
2
Active probe LP 9021 series
Probe LP 9021 series Instrument input
DO 9721 active probe LP 9021 series input
7
3
5
6
1
4
8
2
+5V
7
IN
0.5
V f.s.
1
GND
6
-5V
8
R sel
3
Range A
2
Range B
5
DO 9721
BA
+5V
7
OUT
0.5
V f.s.
1
GND
6
-5V
8
Range A
2
R sel
3
Range B
5