Hach ORBISPHERE 51 Series User Manual page 13

Specifications
Measurement alarm relays on the
measurement board(s)
System alarm relay on the main
board. One system board with
one system relay per instrument
Thermal cut off
Options
Wall and pipe mount
(H x D x W)
Panel mount: Face (housing)
(H x D x W)
12
Digital outputs
Three alarm relays per measurement board
1A-30 VAC or 0.5A-50 VDC on a resistance load
Configurable to Normally Open [NO] or Normally Closed [NC] contacts by changing the
jumper positions.
Potential Electrocution Hazard. Connect only safety low voltage < 33 VAC RMS.
One "instrument system alarm" relay per instrument
1A-30 VAC or 0.5A-50 VDC on a resistance load
Normally closed [NC] (NO relay also available) when instrument is turned on. Opens when
a system alarm is detected, and when it does not receive any signal.
Potential Electrocution Hazard. Connect only safety low voltage < 33 VAC RMS.
General
Prevents ageing of sensors when exposed to high temperatures
Communication
USB host
Ethernet 10/100 Base-T
Size and weight
236.5 x 160 x 250 mm - weight 4.25 kg
9.31 x 6.30 x 9.84 in. - weight 8.82 lbs
156 (123) x 250 x 220 (214) mm - weight 3.35 kg
6.14 (4.84) x 9.84 x 8.86 (8.43) in. - weight 6.62 lbs
WA R N I N G
WA R N I N G