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Digital Indicating Instruments

Digital Ph Meter :

(ZES-310)


Measuring 0 to 14pH, with automatic polarity & decimal point.
Resolution 0.01 pH for pH measurement.
Accuracy ± 0.1% ± 2 digit
Temp. Compensation 0 to 800C
Range 1μF
Read Out Digital bright, LED Type, 3½ digit 7 segment,
12.5mm Height
Electrode Glass Combination Type
Power Requirements 230V± 10%, AC, 50Hz
 
DIGITAL ELECTRONIC STANDARD CELL :
(ZES-311)

Input 230 volts
Voltage Output 1.018 volts
Accuracy .005% ± 1 digit
Display 3½ digit LED display
 

DIGITAL STOP WATCH :

(ZES-312)

  • Start/Stop Operation by mini toggle switch
  • Reset by a push button
  • Range 9999.9 seconds
  • Resolution 0.1Sec.
  • Accuracy - ± .1sec. (Quartz controlled)
  • Display-12.5mm. Bright seven segment display
  • Operating Voltage-230V AC ± 10% 50Hz
 

DIGITAL MICRO VOLTMETER :

(ZES-313)

Specification  
Range 1mV, 10mV, 100mV, 1V & 10V with 100% over
ranging
Resolution 1μV
Accuracy ± 0.2% ± 1digit
Stability Within ± 1 digits
Input Impedance >1000MW (10M on 10V Range)
Display 3½ digit, 7 Segment LED with auto-polarity and
decimal Indication.
Power Supply 220V ± 10%, 50Hz
 

DIGITAL NANOAMMETER :

(ZES-314)

Specification  
Range 100nA, 1μA, 10μA, 100μA with 100% over-ranging
Accuracy ±0.2% for all ranges
Resolution 0.1nA
Input Resistance 25W , 2.5W , 0.25W
Display 3½ digit, 7 Segment LED(12.5mm height)with auto
polarity And decimal indication.
Input Through amphenol connector
Power Supply 220V ± 10%, 50Hz
 

DIGITAL PICOAMMETER:

(ZES-315)

Specification  
Multiplier x1, x10, x102, x103, x104, x105
Accuracy ±0.2% for all ranges
Resolution 1pA, 10pA, 100pA, 1nA, 10nA, 100nA
Input Resistance 2.5KW , 0.25KW , 25W , 2.5W , 0.25W
Display 3½ digit, 7 segment LED (12.5mm height) with auto
polarity decimal indication.
Input Through amphenol connector
Power Supply 220V ± 10%, 50Hz.
 

DIGITAL VOLTMETER DC :

(ZES-316)

Any Range 0-1000 volts, Built in a nicely polished box

 

DIGITAL AMMETER DC :

(ZES-317)
Any Range from 0-5Amps built in a nicely polished box
 

DIGITAL LINE FREQUENCY METER :

(ZES-318)

4 digit LED range 30-70Hz Input 220V AC.

 

DIGITAL CONDUCTIVITY METER :

(ZES-319)

Specification  
Read Out 3½ digit LED
Conductance 0.01μ Mhos to 1000 m Mhos in 5 ranges.
Accuracy ±0.5% ± 1 digit
Resolution 0.01mho in lowest range
Operating Temp 100C to 500C.
Input Frequency 1000 Hz
Input 230V AC ± 10% 50Hz
Cell Constant 0.5 to 1.5
Compensation  

Accessories


1) Conductivity Cell

2) Instruction Manual

 

DIGITAL CONDUCTIVITY BRIDGE :

 

Specification  
Readout 3½ digit LED
Indication Direct conductance and resistance
Range Conductance 0.01 Micro ohm to 1000M Mho in 5 ranges.
Resistance 1 ohms to 2M ohms in 5 ranges.
Accuracy Conductance ± 0.5% of range ±1 digit
Resistance Accuracy ± 1% of range ± 1 digit
Cell Const. Compensation 0.5 to 1.5
Power Supply 230V ± 10% 50Hz AC
Input Frequency 50Hz/1Khz

Accessories


1. Conductivity Cell

2. Instruction Manual

 

CONDUCTIVITY BRIDGE (ANALOG) :

(ZES-321)

Specifications  
Measuring Range 0.1 ohm to 1 Meg ohm in seven ranges Dial
Calibrated for 0 to 1.0 ohm with multiplication
Factors 1,10x1, 10x2, 10x3, 10x4, 10x5, 10x6.
Conductance 0.1 micro MHO to 0.1 MHO in seven ranges. Dial
calibrated for 0 to 0.1 with multiplication factor 1 to
10-1, 10-2, 10-3, 10-4, 10-5, 10-6, 0 to 1.0 ratio of the
test to standard.
Accuracy ±1%
Mains 220volts 50c/s AC.
 

PORTABLE KIT FOR SOIL/WATER :

(ZES-322)

Specification 7 Parameter
1) PH
Display 3½ digit LCD with automatic polarity & decimal.
Operating Temp 0-500C
Power Supply 9V Battery on Mains 230V AC
pH Range 0-14pH.
Resolution 0.01pH
Accuracy 0.01pH ± 1digit
   
2) ORP (Oxidation Redox Potential)
Range 1.999mV.
Accuracy ± 1mV ± 1 digit
Sensitivity 1mV
Temp Range 0-1000C
Resolution 0.1C
Accuracy ± 0.5 g.C ± 1 digit
   
3) DO
Range 0-20PPM (Part per mg.)
Resolution 0.1ppm.
Accuracy ± 0.3 ppm ± 1digit
Temp Compensation 50C to 550C manual.
   
4) CONDUCTIVITY
Range 0-200mhos in 5 ranges.
Resolution 0.01 mmho
Accuracy ± 0.5% FSD ± 1 digit
Cell Constant 0.5 to 1.5
Compensation  
   
5) TDS
Range 0-20000mg/Ltr.
Resolution 10mg/Ltr.
Accuracy ± .1% FSD
   
6) SAILINITY
Range 0-40ppt( Part per thousand)
Resolution 0.1ppt.
   
7) TEMP
Range 0-1000C
Resolution 0.1
Accuracy 0.50C ± 1 digit
 

DIGITAL TELE THERMOMETER :

(ZES-323)

Specifications  
Range 350C-450C.
Resolution 0.10C
Accuracy 0.50C.
Input 230V AC ± 10%
Readout 3½ digit LED display
Channel 6
 

DIGITAL TDS METER :

(ZES-324)

 

Range 0.20000mpp.
Resolution 10mg/Ltr.
Accuracy ± 1%Fsd.
 

DIGITAL POTENTIOMETER :

(ZES-325)

Specification  
Input 220Volts 50c/s
Measuring Ranges .2volts to 1.8volts
Multiplier 0-200m Volts
Standard Cell Built in Output 1.018volts
Range Switch (a) STD Cell (b) EMF Input (c) EMF Output
(a) STD Cell : On this position you can get standard cell output which is shown on
Digital Panel Meter
(b) EMF Input: By Keeping this switch at this position, you can measure the
voltage up to 1.999 volts.
(c) EMF Output: Here you can get standard voltage .2 volts to 1.8 volts &
0-200mV added on each range.
 

LOGIC PROBE :

(ZES-326)

Specification
“ZESCO” probe provides visual indication of the logic state of any point in circuit using digital Ics. Capable of detecting pulses as short as 50 nano seconds, it is an invaluable tool for trouble-shooting and prototype development.

 

Supply Voltage 5Votls DC + 5%
Input Voltage (High Input ) > 2.4votls
Input Voltage(Low Input) <.8volts
Indication-Steady Positive Lamp on
Indication-Steady Ground Lamp off
Indication-Fast Positive pulse Lamp flashes on
Indication-Fast negative pulse Lamp glows less brightly
Minimum detectable pulse width .50 nano seconds
Extended Indication of lamp 100 Milli Seconds
 

TRANSISTOR BUILT IN TESTER :

(ZES-327)

Keeping in view the problem faced by the user, we have designed a simple and> accurate transistor tester. You can test the built in circuit transistor NPN as well as PNP.

Specification  
Input 230volts AC
Output On two LED which blink always. The Oscillator voltages are fed to the LED's
Indication Visual
Complete with instruction manual.
 
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