Chd1200 Mining Intrinsic Safe Resistance Test Instrument - China

Model: CHD1200

Description: CHD1200 Mining Intrinsic Safe Resistance Test Instrument

MA number: MFA150190 (National safety sign for coal mining products).

KA number: KFA150020 (National safety sign for mining products).

ExibI: 320150858 (Intrinsic safe and explosion-proof products certificate)

ExiaII: CMExC17.4383

Patent No.

ZL 2015 2 0977177.7 Introduction:

1 - Applicable for grounding resistance and circuit resistance measurement in mining, industrial park, electricity, telecom, meteorological, oilfield, architecture and industrial motor equipment fields.

2 - It can do measurement directly and no need to disconnect grounding wire or prepare auxiliary electrode.

3 - Applicable for the combustible and explosive gas place.

4 - Measured value is the comprehensive value of grounding body resistance and grounding wire resistance.

Technology parameters: 1 - Measuring range, resolution and intrinsic error.

Measuring range Resolution Intrinsic error

0.1Ω～49.9Ω 0.1Ω ± (truth-value×1%+0.1Ω)

50.0Ω～99.5Ω 0.5Ω ± (truth-value×1.5%+0.5Ω)

100Ω～199Ω 1Ω ± (truth-value×2%+1Ω)

200Ω～395Ω 5Ω ± (truth-value×5%+5Ω)

400Ω～590Ω 10Ω ± (truth-value×10%+10Ω)

600Ω～1200Ω 20Ω ± (truth-value×20%+20Ω) 2 - Resistance range: 0.01~1200Ω

3 - Resistance resolution: 0.001Ω

4 - Data storage: 99 sets

5 - Sound-light alarm: yes.

“AL” button to open or shut up.

6 - Alarm critical value range: 1-199Ω

7 - Power: 6V DC, alkaline dry cell

8 - Working temperature and humidity: -20℃ to 55℃, 10%RH to 90%RH.

9 - LCD display size: 47mm×28.5mm

10 - Jaw size: long jaw 65mm×32mm; circular jaw Φ32mm.

11 - Jaw expanding size: long jaw 35mm; circular jaw 32mm.

12 - Weight: long jaw 1160g; circular jaw 1120g (Battery included)

13 - Dimension: long jaw: 285mm×85mm×56mm (L×W×H); Circular jaw: 260mm×90mm×66mm (L×W×H).

14 - Explosion-proof sign: Exia II BT3 Ga

15 - Degree of protection: double insulation

16 - External magnetic field <40A/m; external electric field <1V/m.

17 - Single measurement time: 0.5s

18 - Measuring frequency of resistance: >1 KHz.

Company Contact:

• Posted By: Xuzhou KY Automation Technology Co., Ltd

• Phone: +8651683890183

• Address: Building A, Science and Technology Park, China University of Mining and Technology, Quanshan distric, Xuzhou , Jiangsu , China

• Email:

• Business Description: Manufacture and sell mining measuring instruments and meters.
  
  We are a professional manufacturer of coal mining safety supervision devices, energy saving testing devices, security support equipment and firefighting products.
  
  We are an university-enterprise cooperation enterprise and own scientific research support from “China University of Mining and Technology” which is a very famous university in China.