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- JENCO
- Measuring Instruments
- 6230M
- Operation manual
JENCO 6230M Operation manual
Summary of 6230M
Page 1
Operation manual jenco model 6230m/6230n/6231m/6231n microcomputer based ph/mv/temp portable meter jenco electronics, ltd. Manufacturer of precision instruments.
Page 2
1 model 6230m 6230n 6231m 6231n storage yes no yes no rs-232c yes yes no no notes: 1. Rs-232c interface operation is for 6230m and 6230n only. 2.The saving, recalling and erasing data functions are for 6230m and 6231m only. 3. Recall mode and erase mode are for 6230m and 6231m only...
Page 3: Initial Inspection
2 initial inspection carefully unpack the instrument and accessories. Inspect for damages made in shipment. If any damage is found, notify your jenco representative immediately. All packing materials should be saved until satisfactory operation is confirmed. General introduction the model 6230m, 623...
Page 4: Splash Proof
3 other features include, low power consumption, percentage of power supply display, electrode offset recognition, electrode slope recognition, built-in buffer coefficients, automatic or manual temperature compensation, auto-saving ph calibration values, and high 50/60 hz ac noise rejection. This me...
Page 5: Changing The Batteries
4 changing the batteries when the lobat indicator is flashing, the user should check that whether the external ac adaptor is connected to the meter reliably, and if only internal batteries is used, the user should change the batteries. If the voltage of power supply is too low, the meter will displa...
Page 6: The Keypad (
5 the keypad ( see notes 2 and 3 ) 1. On/off key: the on/off key turns the unit on or off. The ph calibration values will not be erased when the unit is turned off. 2. Mode key: 2.1. During normal operation, the mode key will change the display mode sequentially to ph-autolock, mv-autolock, ph, mv, ...
Page 7
6 7. Measure and ▽ keys: pressing and holding this combination during erase mode for about 5 seconds will erase all data saved in the non-volatile memory. All 40 sites will be erased completely. Do not use this function until all recorded data has been reviewed or transcribed or downloaded. The lcd ...
Page 8: Modes of The Meter (
7 modes of the meter ( see notes 2 and 3 ) 1. Ph-autolock mode: the meter will display ph and temperature with both ph and autolock on. Wait flashes until the unit detects a stable reading. 2. Mv-autolock mode: the meter will display mv and temperature with both mv and autolock on. Wait flashes unti...
Page 9: Operational Procedures
8 operational procedures before operation, you should turn on the unit. Buffer table selection this unit has two buffer sets: 4.01,7.00, 10.01ph and 4.00,6.86, 9.18ph. To change the buffer set, turn off the unit, then press and hold the stand key while turning on the unit again. The user can select ...
Page 10
9 1.5 press the slope key to calibrate. The slope annunciator will stop flashing and stay on. And the wait annunciator flashes until the unit detects a stable reading. When a stable reading is reached, the wait annunciator will stop flashing and stay off. This means that the second point has been ca...
Page 11
10 you can press the mode key to exit for one point ph calibration. The ph annunciator will stop flashing and be on, and the meter is ready for measurements with stand on but slope off. If dual or three points calibration is needed, go to 2.4. 2.4 remove the ph electrode and atc/temp probe from the ...
Page 12
11 immerse them in the sample to be measured. 1.4 press the measure key. The wait annunciator will flash until the unit determines a stable ph reading. When wait stops flashing and stays off, the reading is locked. Note: if no atc/temp probe is connected, the man will be on, adjust the temperature r...
Page 13
12 measured. 1.4 press the measure key. The wait annunciator will flash until the unit determines a stable mv reading. When wait stops flashing and stays off, the reading is locked. 1.5 the atc/temp probe can be used to measure the sample temperature as required. 1.6 for inherently unstable samples,...
Page 14: Rs-232C Interface Operation
13 3.1 to erase all the data stored in memory, press the mode key repeatedly until the unit displays erase mode. 3.2 press ▽ and measure keys simultaneously and wait for the secondary display to count down to zero. The meter will then display “don” to indicate successful erasure and will return to p...
Page 15: Error Indications
14 the rs-232c standard for txd, rxd and circuit common. Note: the “standard rs-232c” cable is a 25-pin connector. The essential circuit common and txd and rxd are shown here adapted to the db-9 connector. Dte dce data terminal equipment data communications equipment ( your computer or recorder, etc...
Page 16: Ph Buffers
15 oue/und temperature measurement temperature is out of the –10.0 to 120℃ range. Bad eep failed to check or write eeprom. Ph buffers the temperature characteristics of ph calibration buffers 4.00, 4.01, 6.86, 7.00, 9.18 and 10.01 are stored inside the instrument. The buffers used to calibrate the i...
Page 17: Specifications
16 specifications display range accuracy resolution ph -2.00 to 16.00 ph ±0.01 ph 0.01 ph mv -1999 to +1999 mv ±0.05% f.S. 1 mv temperature -10.0 to 120.0 ℃ ±0.3 ℃ 0.1 ℃ ph buffer recognition (4.01,7.00,&10.01) or (4.01, 6.86, &9.18) ph buffer temp. Range 0 to 60 ℃ ph electrode offset recognition ±9...
Page 18: Return of Items
17 return of items authorization must be obtained from one of our representatives before returning items for any reason. When applying for authorization, please have the model and serial number handy, including data regarding the reason for return. For your protection, items must be carefully packed...
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2010-2-25（v02）：修改美国和中国的 email 地址。 英文使用说明书 manual in english 机型 6230m/6230n/6231m/6231n 编制人 豆林奇 编制日期 2003/12/11 文件编号 k6230m/6230n/6231m/6231n-01 修改人 杨启娜 修改日期 2010-2-25 版本号 02 核准人 杨健寿 核准日期 2010-2-25.