About GRYF HB
GRYF HB, spol. s r. o. is a manufacturer of multi-functional measuring instruments used for measuring electrochemical and physical values such as pH, temperature, conductivity, oxygen, redox potential.
GRYF 9202 - pH meter, thermometer
The GRYF 9000 series measuring instruments are modular measuring instruments designed for industrial measurement.
Request a quote
The GRYF 9000 series measuring instruments are modular measuring instruments designed for industrial measurement.
The device can be used separately as an autonomous measuring and control unit with the possibility of transmitting the measured quantity or it can be set up using the RS485 digital communication line into measuring groups (up to 32 units) connected to the PC. In such an assembly, it is possible to perform on the PC visualization of the technological process, to transfer and archive the measured data, to control the technological process using the measured values, to transmit different levels of messages and alarms. Archived data can be further processed in a spreadsheet (data is stored in DBF files). In case of PC failure or communication, individual modules can switch to autonomous measurement and control mode. When using the RS485 line, the measured temperature can be transmitted next to the main measured value.
The instrument is operated by four buttons on the front panel. Some functions may be protected against unauthorized interference in the menu (eg prohibition of setting of PI controller parameters, prohibition of calibration). The measured value is displayed with a 5-digit LED visible.
Specifications
| GRYF 9202 | |
| Measuring range pH meter, mV meter | 0.00 – 14.00 |
| Accuracy of pH meter measurement, mV meter | ±0.01 , ±1dig. |
| Input resistance of pH meter, mV meter | 1012 Ω |
| Temperature compensation of pH meter | aut. 0 – 100°C |
| Temperature measurement range | -50 – 200 °C |
| Temperature measurement accuracy | ±0.1°C , ±1 dig. |
| Power voltage | 12 – 35V DC / 12 – 24V AC |
| Power consumption from the power supply | max. 3W |
| Consumption from the clamps of the rectifier (S30, S31) | max. 200mA |
| Consumption from the inner source 5V (S32, S33) | max. 100mA |
| Electronic switches (logic outputs) | 28V , 100mA DC |
| Log. input - voltage for logic 1 | 5 – 35V DC / 11 – 60V AC |
| Operating temperature range | 0 – 50°C |
| Storage temperature range | -20 – 80°C |
Internal modules of the 9000 series
Regulatory module
- voltage
| Range of voltage outputs | 0 – 1V , 0 – 5V , 0 – 10V |
| Max. recommended load current | 2mA |
- pulse
| Impulse output range | 0 – 110 impulse / min |
| Limit values of the impulse switch | 28V , 100mA DC |
| Pulse width | ca. 100 ms |
Transfer module
- analog - current line
| Current outputs range | 0 – 20mA or 4 – 20mA |
| Voltage availability | 8V |
| Maximum loop resistance | 400 Ω |
| Nonlinearity of the transfer exciter of the current line | 0.1% |
- digital
| RS 485 | Communication simple Master-Slave text protocol |
| Current outputs range | 0 – 20mA or 4 – 20mA |
The 9000 series devices can be fitted with modules according to the requirements for process control and data transfer devices (one control module and one transmission module).