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The new generation of pH-/redox-/temperature
meas.devices!
| - Double display for pH or redox and temperature - Redox
mode allows for automatic conversion to a hydrogen
system.
- Serial interface
- Automatic of manual temperature compensation
- Automatic buffer detection
- Automatic detection of measuring value stability
- rH-measurements
- Min-/Max value memory, Hold function
- Evaluation of probe quality
- Battery and d.c. operation
- device can be used as thermometer, too
- serial interface, device can be connected to bus system (up to 5
devices can be connected to one PC-interface)
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GMH 3530 without
accessories1)
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GMH 35 ES additional set2)
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1) pH-probe, temperature probe, redox probe calibration access.,
etc. please order separately or as additional set.
2) consisting of: pH-electrode GE 1OOBNC, temperature probe GTF
401 (Pt100 4-wire), case GKK 3500 and GAK 1400
Specification:
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Meas. range: |
Temperature:
-100.0 to +250.0°C or -148.0 to +482.0°F
pH:
0.00 to 14.00 pH
Redox (ORP): -1,999
to + 1,999
mV.
for hydrogen system (DIN38404): -1,792 to +2,207mVH
rH: (GMH3530 only) 0.0
to70.0 rH |
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Accuracy: (device) |
(±1 digit at nominal
temperature)
Temperature: ±0.2°C
(-20 to +80°C), otherwise ±0.4°C
pH:
±0.01 pH
Redox (ORP): ±0.1 % FS
(mV resp. mVH)
rH:
±0.1 rH |
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Sensor connections: |
Temperature: 4-pin screened
Mini-DIN-socket.
for Pt100 4-wire (2-wire connection possible)
pH,Redox: BNC-socket |
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Input resistance: |
(pH, Redox) 1012 Ohm |
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Display: |
2 four-digit LCDs (12.4 mm or 7 mm high) for pH, redox and temperature, min./max values, hold function, etc. as well as
additional functional arrows.
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Working temperature: |
0 to +50°C |
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Relative humidity: |
0 to +95% r.h. (not condensing) |
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Storage temperature: |
-20 to +70°C |
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Interface: |
serial interface (3.5 mm jack
connector), direct connection to RS232 interface of a PC via
electrically isolated interface adapter GRS 3100 or GRS 3105
resp. via interface adapter USB 3100 to USB-interface |
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Min-/Max-value memory: |
max. and min. values will be memorized.
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Hold function: |
By pressing a button, the current meas. value will be
memorized. |
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Push buttons: |
6 membrane keys for
ON/OFF-switch, selection of meas. mode,
min- and max-value memory,
hold-function, calibration etc.
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Power supply: |
9V-battery, Type IEC 6 F 22 (included) as well as
additional d.c. connector
(internal pin diameter 1.9 mm) for
external 10.5-12V direct voltage supply.
(suitable power supply: GNG 10/3000).
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Low battery warning: |
'bAt' |
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Power consumption: |
approx. 3 mA |
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Automatik-Off-function: |
Device will automatically
be switched off, if no key is pressed
/no interface communication takes
place for the time of the power-off delay.
The power-off delay can be set to
values between 1 and 120 min.; it can be completely deactivated. |
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Dimensions (device): |
142 x 71 x 26 mm (H x W x D)
impact resistant ABS plastic
housing, membrane keyboard, transparent panel.
Front side IP 65, integrated pop-up
clip for table top or suspended use.
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Weight: |
approx. 155 g
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automatic temperature compensation: |
Automatic
temperature comp. (ATC) if temperature probe
is plugged in and operating mode is
"pH". Manual temperature input if no probe connected. |
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pH-calibration: |
automatic buffer detection. Automatic compensation of
temperature dependance of buffers.
acceptable elektrode data:
Asymmetry: ±60 mV
Slope: 45 ... 62 mV/pH
Sensor evalution depending on calibration
results (10 to 100%), displayed by pressing a key
opt. 2- or
3-point-calibration with bend of the characteristics for GREISINGER-Standard-buffers
(pH4.01, pH7.00, pH10.01), Buffers acc. to DIN19266 (A,C,D,F,G) or manual buffer entry. |
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Redox-mesurement (ORP): |
You have two choices
"mV" standard-Redox- bzw. mV-measurement
"mVH" Temp. compensated conversion to hydrogen
system acc. to DIN 38404 part 6, table 1
based on the standard redox electrode (e.g. GE 105
with Ag/AgCl system and 3 mol KCL) used.
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rH-measurement: |
Calculation of the rH value by means
of a redox measuring
and by manually entering the
pH-value. The pH-value can also be taken from a previous pH measurement.
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Temperature measurements: |
Display of current value 12.4 mm high for thermometer mode.
Min-/Max- or Hold values can be displayed in the second 7 mm high display. |
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Accessories:
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Compatible electrodes |
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Device for measuring pH, redox and temperature, lose device - without any electrodes or accessories
Please order the following accessories separately:
Please order furthermore separately:
 = data sheet as *.pdf
= instruction manual as *.pdf
 deutsche Beschreibung
Price of the basic article, German V.A.T. incl
:
EUR
169.00
The net price of the basic article GMH 3530
is:
EUR
142.02
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