Chapter 7 _____________________________________________________________ Technical Data
VAISALA _______________________________________________________________________ 175
Specifications
QML102 Logger
Table 40
QML102 Logger Specifications
Property
Description/Value
Processor
32 bit Motorola
A/D conversion
16 bit
Data logging memory
1.7 Mbytes internal Flash memory
Up to 160 Mbytes on optional Compact
Flash memory card.
Sensor inputs
10 Analog inputs (20 single ended inputs)
2 counter / frequency inputs
Internal channel for PMT16A pressure
transducer
Typical accuracy across
measured temperature range
-50
°
C ... +80
°
C
Better than
±
0.06
°
C
Maximum error across
measured temperature range
-35
°
C ... +50
°
C
Less than
±
0.12
°
C
Maximum error at 0
°
C
Less than
±
0.06
°
C
Voltage measurement
±
2.5V range
±
250 mV range
±
25 mV range
±
6.5 mV range
Better than 0.08 % F.S.
±
150
µ
V
Better than 0.18 % F.S.
±
15
µ
V
Better than 0.18 % F.S.
±
3
µ
V
Better than 0.18 % F.S.
±
3
µ
V
Frequency measurements
0.003 % + resolution 241 ns (up to 2 kHz)
Common mode range
+5 V / -4 V
Real-time-clock
Standard
Better than 20 sec/month
Serial communication
Standard
Optional
Speed
Parameters
One RS-232
Two optional plug-in slots for
communication modules for increasing the
number of serial I/O channels up to 5 pcs
300 ... 19200 bps
Configurable speed, start bits, data bits,
stop bits, parity, XON/XOFF, and check
sum
Voltage (external powering)
8 ... 14 VDC recommended (30 V max.)
Standard internal battery
1.3 Ah/6 V
Power consumption
< 10 mA/6 V (typically with basic 5
sensors)
Temperature (operating)
-35 ... +55
°
C
Temperature (storage)
-50 ... +70
°
C
Humidity
0 ... 100 % RH
Emissions
CISPR 22 class B (EN55022)
ESD immunity
IEC 61000-4-2
RF field immunity
IEC 61000-4-3
