Hach Sigma 950 Instrument Manual page 78

Maintenance
J3
ID Description
+12 V dc Interface Connector Main power input to meter
F1
Pin A (ground), Pin B (+12 V dc)
+12 V dc Sampler interface connector Pin A (+12 V dc),
F2
Pin B (ground)
Analog Input Option Interface connector (if so equipped)
F3
Pin A (+12 V dc), Pin B (ground)
ID
J1
J2
J3
J4
J5
J6
J7
J8
J9
J10
J11
76
Figure 19 Base Board
J1
F1 (4 Amp)
F2 (4 Amp)
J6 J2 J11 J8
Table 30 Base Board Fuses
Table 31 Base Board Connectors
J5
F3 (1 Amp)
J9 J10
Type & Rating
4 Amp, 125 V ac Slow-blow 5 x 20 mm (P/N 2604)
4 Amp, 125 V ac Slow-blow 5 x 20 mm (P/N 2604)
1 Amp, 250 V ac Fast-blow 5 x 20 mm (P/N 2536)
Description
+12 V dc - Main Power Input
Relay Option
CPU Circuit Board
4–20 mA Output Option
Display push-button
Rain Gauge Option
Bubbler Assembly
pH/ORP Option
Submerged Pressure Sensor
Analog Input Option
Sampler Interface Connector
J4
J7