H33.0.02.6C-09
Operating Manual GMH 3530
page 14 of 14
16 Specification:
Display ranges:
Temperature:
-100.0 ... +250.0°C or -148.0 ... +482.0°F
pH:
0.00 ... 14.00 pH
Redox (ORP):
-1999 ... +2000 mV;
referring to hydrogen system: -1792 ... +2207 mV
H
(bei 25°C) acc. to DIN 38404
rH:
rH 0.0 ... 70.0
Resolutions:
0.1°C or 0.1°F / 0.01 pH / 1 mV / 0.1 rH
Accuracy:
(at nominal temperature, device ±1Digit)
Temperature:
±0.2°C (-20..80°C), otherwise ±0.4°C
pH:
±0.01 pH (for electrode temperature 10..50°C)
Redox:
±0.1% FS (mV or mV
H
)
rH:
±0.1 rH
Sensor connections:
pH, Redox, rH:
BNC-socket
Temperature:
4-pin screened Mini-DIN-plug for Pt100 4-wire (2-wire also possible)
Input resistance:
10
12
Ohm (pH, Redox)
Nominal temperature:
25°C
Working temperature:
0 to +50°C
Relative humidity:
0 to +95%RH (non-condensing)
Storage temperature:
-20 to +70°C
Interface:
Serial interface (3.5mm jack), serial interface can be connected to RS232 or USB inter-
face of a PC via electrically isolated interface adapter GRS3100, GRS3105 or
USB3100 (accessories).
Memory:
Min-, Max-value- and Hold memory
Power supply:
9V-battery, type IEC 6F22 (included) or additional d.c.connector (internal pin Ø 1.9 mm)
for external 10.5-12V direct voltage supply.
(suitable power supply: GNG10/3000)
Power consumption:
approx. 3 mA
Low battery warning:
and
’ bAt ’
Automatic-off-function:
Device will be automatically switched off if no key is pressed/no interface communica-
tion takes place for the time of the power-off delay. The power-off delay can be set to
values between 1and 120 min.; it can be completely deactivated.
Housing dimensions:
142 x 71 x 26 mm (L x W x D), impact-resistant ABS plastic housing, membrane key-
board, transparent panel. Front side IP65, integrated pop-up clip for table top or sus-
pended use.
Weight:
approx. 165 g
Temp. compensation:
Automatic temperature compensation (ATC) in the operating modes "pH", "mV
H
" or "rH"
if temperature probe is used. Compensation temp. range: 0 ... 105°C
If no temp. probe is used, temperature can be entered manually.
pH-calibration:
- 2-point or 3-pt. calibration with standard buffers, DIN-buffers, manually entered puffers
- autom. buffer detection, temperature dependence of standard or DIN buffers will be
automatically compensated
- permissible electrode data:
asymmetry: ±55 mV
slope: -62...-45 mV/pH
- sensor evaluation according to calibration result (from 10 to 100%).
Rec. redox electrodes:
Reference system: silver/silver chloride, electrolyte: KCl, 3 mol/l
(use only this type if changing values to hydrogen system "mVH" and for rH measurements!)
EMV:
The device corresponds to the essential protection ratings established in the Regula-
tions of the Council for the Approximation of Legislation for the member countries re-
garding electromagnetic compatibility (2004/108/EG).
Additional fault: <1%
17 Disposal instruction:
Batteries must not be disposed in the regular domestic waste but at the designated collecting points.
The device must not be disposed in the unsorted municipal waste! Send the device directly to us (sufficiently
stamped), if it should be disposed. We will dispose the device appropriate and environmentally sound.
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