Name: Automatic Temperature Compensation reliable accuracy pH/ORP meter
Brand: LOHAND
Availability: InStock

Product Details

Product Description

Portable Waterproof pH/ORP meter PH-131

INTRODUCTION

This new Waterproof Meter which is cost-effective is developed to meet requirements of most users. It is fully waterproof, shockproof, reliable accuracy and a striking exterior.

FEATURES

IP67 Waterproof

Shockproof

2*AA Battery

User friendly

pH Measurement

ORP Measurement

High Accuracy

5 data points for Calibration

Automatic Temperature Compensation

Rapid Response

Restore Factory Default

HOLD

Auto Power-Off

	Name	Description
1	Ready	Displayed when measuring results are stable
2	H	HOLD
3	R	Restore factory settings
4	pH	Liquid unit
5		Main Display
6		Second Display
7	Temperature Scale	Current temperature scale
8	Battery Icon	Current battery power level
9	Buffer	Calibrating
10	pH Probe Life Icon	Need to replace new probe when it show blank Note:Only for pH Functions

SETUP MODE

Power On

Press POWER once to turn the meter on.
Press POWER again to turn the meter off.

NOTE: All operations are operational when the meters power on.

Temperature Units

Temperature unit ℃, Range [0.0 – 60.0]

Temperature unit ℉, Range [32.0 – 140.0]

Working Mode

MODE,enter into different mode :

Enter into measurement mode as soon as power on.
Press MODE once,”pH” flash on the Second Display, pH mode
Press MODE twice,”mV” flash on the Second Display, ORP mode
Press MODE three times “℃” flash on the Second Display, Degrees Celsius temperature unit mode.
Press MODE four times, “℉”flash on the Second Display, Degrees Fahrenheit temperature unit mode.
Press MODE five times, “Buffer” flash on the Second Display,Calibration mode.
Press MODE six times, “R” flash on the Main Display,Restore factory default mode.

HOLD/SET

HOLD/SET,when in the Measurement Mode, it acts as HOLD function.

When in the Setting Mode, it acts as Confirmation or Selection function.

Set Temperature Units

Press MODE three times,“℃” flash on the Second Display,press HOLD/SET to confirm temperature unit.

When the meter connect to probe, current temperature value will show on the Second Display; on the other hand, show the default 25℃ without probe.

Press MODE four times, “℉” flash on the Second Display, press HOLD/SET to confirm temperature unit.

When the meter connect to probe, current temperature value will show on the Second Display; on the other hand, show the default 77℉ without probe.

pH Calibration

In the pH Measurement Mode

Immerse the pH probe in standard buffer solution until READY shows.(Get high accuracy ,please immerse the probe for 3min or longer .)

Press MODE five times, Buffer flash on the Second Display, press HOLD/SET to enter Calibration Mode. (BUFFER stop flashing)

The meter will automatically recognize the standard buffer solution and automatic calibration. During this process, calibration value will be shown on the Second Display.

After Calibration, meter automatically returns to Measurement Mode.

Up to 5 points calibration: 1.68 4.00 7.00 10.00 12.45

Temperature℃	pH1.68	pH4.00	pH7.00	pH10.00	pH12.45
0	1.67	4.01	7.12	10.65	13.42
5	1.67	4.00	7.09	10.52	13.21
10	1.67	4.00	7.06	10.39	13.00
15	1.67	4.00	7.04	10.26	12.81
20	1.68	4.00	7.02	10.23	12.63
25	1.68	4.00	7.00	10.00	12.45
30	1.69	4.01	7.00	9.87	12.30
35	1.69	4.02	6.99	9.74	12.14
40	1.69	4.03	6.98	9.61	11.98
45	1.70	4.04	6.97	9.48
50	1.71	4.06	6.97	9.35
55	1.72	4.07	6.97	9.23
60	1.72	4.09	6.96	9.10

Note: For high accuracy, we recommend that users should regularly calibrate. In the following situation, users must recalibrate meters.

Replace probe

l After measuring aggressive chemicals

l Need high accuracy

l After measuring strongly acidic/alkaline substances (pH<2 or pH>12)

l At least once a month

ORP Calibration

In the ORP Measurement Mode

Immerse the ORP probe in standard solution until READY shows.(Get high accuracy ,please immerse the probe for 3min or longer .)

Press MODE five times, offset flash on the Second Display, press HOLD/SET to enter Calibration Mode. (OFFSET stop flashing)

Press SET adjusts to target value, plus 1 for every pushing; minus 1 for continuing press. Range ±150.0mV

After adjust to target value, press MODE, returns to Measurement Mode. If the target value is not equal to the measured value, unit show R.mV

ORP Calibration solution

No.1

Chemical Formula

256 mV

pH 4.00
buffer solution

Quinhydrone

[1]

86 mV

pH 7.00
buffer solution

Quinhydrone

[1]

Restore Factory Default

Press MODE six times, R flash on the Main Display,press HOLD/SET to

restore factory default and meter will return to Measurement Mode after LCD full-shown for 1S.

AUTO POWER-OFF

The meter will automatically power off without any operation for 8 min.

SPECIFICATION

pH/ORP Meter
Mode	pH	Voltage(mV)	Temperature
Range	0 to 14pH	-1200~+1200mV	0.0-60.0℃
Range	0 to 14pH	-1200~+1200mV	(32-140℉)
Resolution	0.01pH	0.1mV	0.1℉(0.1℃)
Accuracy	±0.02pH	±1mV	±0.9℉(±0.5℃)
Responding Time	20S	20S	30S
Calibration	Up to 5 points
Temperature Compensation	Auto (ATC) from 32-140℉ or 0-60℃
Operating Temperature	32-122℉(0~50℃)
Battery	2*AAA
Probe	Plastic electrode

Packaging & Shipping

The normal package is carton box,it also can be packaged according to customers special request.

Our Services

We have experienced and dedicated core members to offer you professional and reliable before-sales and after-sales service.

Company Information

Hangzhou Lohand Biological Co.,Ltd is a professional company that manufactures and exports laboratory instruments and equipments.We have our own registered brand"LOHAND" and own factory,with strong R&D center,sales team,customer service team and QC team,which grows very fast and obtains good reputation in the markt.

Our major products include: Refractometer,Test paper,pH meter,Electrode,TDS meter,Salinity meter, DO meter,ORP meter,Conductivity meter,Turbidity meter,Color comparison tube,test kit etc.Most of the products have CE certificate.All products can be customized according to buyers' special requirements.

FAQ

Q1: Why choose us?
A: 1. We have our own factory with strong R&D center and QA team which can make sure your goods can be sent out on time and in superior quality.
2. We have experienced and dedicated core members to offer you professional and reliable before-sales and after-sales service.
3. We have purveyed customers with the lowest wholesale price.

Q2: How do you guarantee the quality?
A: One year's guarantee from date on B/L. Normally. If it's quality problem, we promise to return goods or funds.

Q3: Is OEM available?
A: Yes, all goods can be custom made by your requirements, including packing, LOGO print, etc.

Q4: Can we buy 1 pc for sample testing?
A: Yes, we are glad to send 1pc for quality testing if we have stock of the model you required.

Q5: How to deliver the goods for trial order or small order?
A : For small order, we prefer to choose international express, such as DHL, TNT, EMS which are faster and more convenient for customer. Also, we cooperate with an express agent that can give us a big discount for express fee which is much lower than that quoted by official. For the goods with detachable battery, the express fee can be lower down if the goods is sent out without battery.

Q6: What kind of payment your company accept?
A : T/T , WEST UNION , PAYPAL , ETC.

Q7: If we have not found the model from website, what should we do?
A: Please email us with description and picture of the product, we research and develop new model every month, and some of them maybe have not been uploaded in website immediately. But If this is a new products for us, we can develop it for you after get all detailed information about your product.