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GZseries
Precision Ex-proof scale
LF series

ATEX approved scale for precision weighing in dangerous areas

In industrial scene the accurate weighing operation is often necessary even in explosive atmosphere. GZ series can perform reliable weighing operation in explosive atmosphere zone 1 and zone 2.
All models can be supplied as "dry-cell battery operation type" for which no complicated installation works are necessary.

GZII series

Intrinsically safe scale (external weight type)
Covering the wide weighing range from 2kg to 200kg. high speed response and stable indication

GZH series

Intrinsically safe scale with built-in weight
Easy calibration, stable measurement are assured with internal weight

Intrinsical safety Ex ia IIB Ta4


EC declaration of conformity GZII_GZH
EC-TYPE EXAMINATION CERTIFICATEEC-TYPE EXAMINATION CERTIFICATE
IECEx Certificate of Conformity
IECEx Certificate of Conformity
Operation area
 
ⅡA
ⅡB
ⅡC
T1
aceton, benzene, ammonia, methanol, ethane, toluene, propane, methane, acetic acid
coke-oven gas, acrylonitrile, hydrocyanic acid, cyclopropane
hydrogen
T2
ethanol, butanol, butane, methyl methacrylate
ethylene, ethylene oxide, ethyl acrylate
acethylene
T3
gasoline, hexane, pentane
acrylaldehyde, dimethyl ether
 
T4
acetaldehyde, trimethylamine
ethyl methyl ether, diethyl ether
 
T5
 
 
carbon disulfide
T6
ethyl nitrite
 
ethyl nitrite

Selectable from two types in power supply, power supply box type or dry-cell battery type

Power supply box type

no earth connection work is necessary
Dry-cell battery type, very easy to install

no wiring work is necessary, 150 hours continuous operation
* the replacement of dry-cell battery has to be done in safe area
Power supply box type

* The standard length of power supply cable is 5m. It can be extended as option (see page 41).

Easy comperator function with two limit values setting

judge the result by displaying the arrow mark as either HI (excessive), OK(appropriate), or LO(insufficient).

Always keep the scale in good condition

semi-automatic calibration with built-in weight (available only with GZH(-B) series).
GZII(-B) series can be calibrated with external reference weight.

Stainless steel housing, tough body
ideally fitted to industrial scene

mirror finish weighing pan available as standard in GZII-(B)2000(C)Ex, 6000(C)Ex, 12K(C)Ex,all models in GZH(-B) series

Easy connection to outside devices like PC, printer

plentiful options are selectable output options are available only with power supply box type.

Specifications

Models
GZH-610Ex
GZH-1500Ex
GZH-3100Ex
GZH-6100Ex
GZH-30KEx
Capacity
610g
1500g
3100g
6100g
30000g
Readability (d)
0.01g
0.01g
0.01g
0.1g
0.1g
Repeatability
0.01g
0.01g
0.01g
0.1g
0.2g
Pan size
140mm dia.
250×202mm
250×202mm
250×202mm
270×250mm
Calibration
Internal & External
Internal & External
Internal & External
Internal & External
Internal & External
Models
GZII-2000Ex
GZII-6000Ex
GZII-12KEx
GZII-30KEx
GZII-60KEx
Capacity
2000g
6000g
12000g
30000g
60000g
Readability (d)
0.01g
0.1g
0.1g
1g
1g
Repeatability
0.01g
0.1g
0.2g
1g
1g
Pan size
170mm dia.
250×202mm
250×202mm
360×326mm
360×326mm
Calibration
External
External
External
External
External
Models
GZH-610CEx
GZH-1500CEx
GZH-3100CEx
GZH-6100CEx
GZH-30KCEx
Capacity
610g
1500g
3100g
6100g
30000g
Readability (d)
0.01g
0.01g
0.01g
0.1g
1g
Verification intervals (e) *1
0.1g
0.1g
0.1g
1g
1g
Repeatability
0.01g
0.01g
0.01g
0.1g
0.2g
Pan size
140mm dia.
250×202mm
250×202mm
250×202mm
270×250mm
Calibration
Internal & External
Internal & External
Internal & External
Internal & External
Internal & External
Models
GZII-2000CEx
GZII-6000CEx
GZII-12KCEx
GZII-30KCEx
GZII-60KCEx
Capacity
2000g
6000g
12000g
30000g
60000g
Readability (d)
0.01g
0.1g
0.1g
5g
1g
Verification intervals (e) *1
0.1g
1g
1g
5g
10g
Repeatability
0.01g
0.1g
0.2g
5g
1g
Pan size
170mm dia.
250×202mm
250×202mm
360×326mm
360×326mm
Calibration
External
External
External
External
External
*1 "CE" models are OIML class II approved.
* All models can be ordered as dry-cell battery type. The model name of dry-cell type contains alphabet "B" like "GZ△-B×××Ex".

Common Specifications

Measuring system
Tuninng-fork frequency sensing
Tare
Full weighing range
Display
LCD

Options

GZR1 *1
Printer output(DIn 5p)
GZR2 *1
RS232C output(D-sub 25p)
GZR4 *1
RS422A output(D-sub 25p)
GZLM *1
Relay contact output
GZPC *2
Extension of power supply cable
GZDS
Display stand
*1 available only for power supply box type
*2 Max 100, per 5m.
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