Advertisement
SIGNAL SPECIFICATIONS
Power (Pin 2)
ENABLE (Pin 5)
RESULT (Pin1)
STROBE Trigger (Pin 4)
Serial Transmit (Pin 6)
Serial Receive (Pin 3)
LH100 AND LH200 DIFFERENCES
From an installation and operational perspective, the LH100 and LH200 are fully compatible. External
hardware differences are detailed below.
Feature
Report LED (near connector)
Dark Measurement
Dark Threshold
Spread Threshold
Peak Threshold
System Gain
System Bias
Invoke free-run mode
Serial communications
Serial output data
LH100
Off - no leak
Amber – failure
4 Samples
Fixed
Fixed
Fixed
Fixed
Fixed
Connect signal to common
Logic level signal
Out only, 9600 baud
Fixed: Dark Average, Dark
Spread, Peak, and Flags
9
24V DC +/- 10%
Active high, 15 – 24 Volts.
10K ohms input impedance.
Zener limited at 30 volts.
Sourcing output, active high.
Off: zero volts.
On: supply voltage less 1 volt.
Output impedance: 200 ohms.
Active high.
Off: zero volts.
On: supply voltage less 1 volt.
Output impedance: 1500 ohms
RS-232 levels.
Baud rate: 38400
RS-232 levels
Baud rate: 38400
LH200
Off – after power-up, no testing done
Green – no leak
Amber – high dark level or spread
Red – leak detected with flash
128 Samples
User settable
User settable
User settable
User settable
User settable
Enter "F" through terminal or laptop
RS-232 level signals
Bidirectional, 38400 baud
Selectable: Dark Average, Dark Spread
Peak Value, Leak Factor, Temperature
and Flags
Advertisement
