All ProductsAnalyticalAnalyzersCalibratorsHumidityData LoggersLight MetersMeasurement

  

MultimetersOhmmetersPressureStandardsTemperatureTransmitters
DECADE RESISTANCE BOXES
Decade Resistance Boxes - ZX Series

Decade Resistance Boxes ZX Series.
ZX74E, ZX75E, ZX76E: Decade Resistance Boxes, accuracy 0.01% +0.002Ω at 20șC ±2șC 
ZX77E: Decade Resistance Boxes accuracy 0.05%+0.002Ω at 20șC ±2șC 



Decade Resistance Box.

ZX74 Series 

The ZX74 Series of Decade Resistance Boxes
are very high accuracy and stable six-dial
instruments. 
There are 4 versions in the series with a
maximum resistance of 1,111,111Ω. 

The resistive elements are non-inductively 
wound on high quality formers using a resistance 
wire of specially selected alloy. 
Each resistive element is heat treated and undergoes a controlled ageing process to produce the very highest stability and also a low temperature coefficient. 

Switches are of the highest quality with low pressure contacts for long life and reliability. 
Each decade switch is manufactured using a fully enclosed construction for maintenance free operation. ZX74 Series decade boxes are housed in attractive robust metal cases with adjustable feet and a retractable carrying handle.

The very popular ZX74 model has a lowest decade with steps of 1mΩ. 
This is particularly useful for Resistance Thermometer Simulation and resistance bridge networks. 
All models have an extra terminal connected to the electrostatic screen which may be required in AC. bridge applications. 

Specifications 

Accuracy: 

ZX74E, ZX75E, ZX76E: (0.01% +0.002Ω) at 20șC ±2șC 
ZX77E: (0.05%+0.002Ω) at 20șC ±2șC 
RH: 45 - 75% and power consumption less than 0.05W. 
Temp. coefficient: (-5 to +10)ppm/șC 
Power dissipation: MAX 0.2W 
Shipping: dimensions (mm): 435x136x110 weight (Kg): 4
Type Total Resistance Dials Available   (NA = not available)
  Ω X10MΩ X1MΩ X100KΩ X10KΩ X1KΩ X100Ω X10Ω X1Ω X0.1Ω X0.01Ω X0.001Ω
ZX74 1,111.210            ±0.01% ±0.01% ±0.05% ±0.1% ±2%  ±5%
ZX75 11,111.1         ±0.01% ±0.01% ±0.02% ±0.05% ±0.5% ±5%  
ZX76 111,111.0       ±0.01% ±0.01% ±0.01% ±0.02% ±0.1% ±1%    
ZX77 1,111,110     ±0.05% ±0.05% ±0.05% ±0.05% ±0.1% ±1%      
ZX83 11,111,110   ±0.05% ±0.05% ±0.05% ±0.05% ±0.05% ±0.05%        
ZX84 111,111,100 ±0.1% ±0.05% ±0.05% ±0.05% ±0.05% ±0.05%          

 

Decade Resistance Boxes - ZX90 Series

ZX90 Series

The ZX90 Series of Decade Resistance Boxes comprise of 10 instruments to cover a resistance range of up to 1,111,111Ω with instruments available in 4, 5, 6 and 7 Decades. Whilst they are low cost these instruments are of high quality and feature precision low contact resistance switches. 

The resistive elements are made of enamelled manganin wire which is non-inductively wound onto high quality formers. Each resistive element is heat treated and undergoes a controlled ageing process to produce the very highest stability and to achieve low temperature coefficient. 
The instruments are housed in an attractive metal case which is both robust and dust proof.
RANGE SWITCHING x105 x104 x103 x100 x10 x1 x0.1 x0.01 Dimensions Weight
Type Number of Decades Total Resistance (Ω) Accuracy   (mm) (unpacked) (kg)
ZX90  4 111.1          ±0.1% ±0.5% ±2%  ±5% 200x95x94 0.85
ZX91 4 11,110.0     ±0.1% ±0.1% ±0.1% ±0.5%     200x95x94 0.85
ZX92 5  1,111.1       ±0.1% ±0.1% ±0.5% ±2%  ±5% 242x95x94  1.0
ZX93 5 11,111.0     ±0.1% ±0.1% ±0.1% ±0.5% ±2%    242x95x94  1.0
ZX94 5 111,110.0   ±0.1% ±0.1% ±0.1% ±0.1% ±0.5%      242x95x94  1.1
ZX95 6  11,111.1     ±0.1% ±0.1% ±0.1% ±0.5% ±2% ±5% 284x95x94  1.15
ZX96 6  111,111.0   ±0.1% ±0.1% ±0.1% ±0.1% ±0.5% ±2%    284x95x94  1.25
ZX97  6 1,111,110.0 ±0.2% ±0.1% ±0.1% ±0.1% ±0.1% ±0.5%     284x95x94  1.25
ZX98  7 111,111.1   ±0.1% ±0.1% ±0.1% ±0.1% ±0.5% ±2% ±5% 327x95x94  1.35
ZX99  7  1,111,111.0 ±0.2% ±0.1% ±0.1% ±0.1% ±0.1% ±0.5% ±2%   327x95x94  1.35

 

Please email sales@hotektech.com or call 253-927-6186 if you are interested in a purchase, or
  need additional information.

[Home] [Top] [Distribution] [Contact Us]