Specifications; Alarm Output - Extech Instruments RH520A User Manual

Specifications
Display
Temperature Range/Accuracy
Humidity Range/Accuracy
Dew point temperature
Internal memory storage
Sampling interval
Graph scaling
Low battery indication
Alarm output
Power supply
Battery life
Operating Temperature
Operating Humidity
Dimensions
Weight
Alarm Output
The alarm output can be used to power external warning or switching devices when
programmed alarm limits are exceeded. We offer the optional SL123 (AC) or SL124 (DC) cable
and relay kits for this purpose.
Transfer logged data using the PC Interface
Software installation procedure and operational instructions are located on the ExChart
software disc.
actoolsupply.com
Graphical LCD
o
‐17 to 50 C (0.0 to 120.0
o
‐28 to ‐17 C (‐20.0 to 0
o
50 to 60 C (120.0 to 140
10 to 95%/±3.0% RH
o
‐28 to 60 C (‐20.0 to 140.0
49,152 complete reading sets
Selectable recording rate: 0.1(6 seconds) to 199.9 minutes
User selectable in 5
5‐segment battery indicator
3.5mm Mono Phone Plug,
Maximum: 3.4mA @ 5 Vdc,
Minimum Output Voltage: 2.5 Vdc
Three (3) 'AA' batteries and AC adaptor (included)
DC4.5V 300mA, 3.5mm x 1.35 mm plug
-
+
4 weeks typical, using alkaline batteries
CONTROL MODULE and DISPLAY:
o
0 to 50 C (32 to 120
SENSOR: ‐28 to 60
CONTROL MODULE and DISPLAY:
90% RH max.
SENSOR: 95% RH max.
127 x 196 x 23mm (5.0 x 7.7 x 0.9")
357g (12.6oz)
16
actoolsupply.com
o o
F) / ±1.0 C (1.8
o o o
F) / 3 C (±5.4 F)
o o o
F) / 3 C (±5.4 F)
o
F)
o
C/F in 10% increments
o
F)
o o
C (‐20 to 140 F)
RH520A-EU-EN v4.4 8/13
o
F)