Figure 1 Xyr 6000 Functional Diagram - Honeywell OneWireless XYR 6000 User Manual

1. Introduction
1.4. About the transmitter
•
Input types
−
Thermocouple (B ,E, J, K, N, R, S, T) (all models)
−
RTD (Pt100, Pt200, Pt500) (STTW400)
−
mV (0 to 10, 0 to 50, 0 to 100) (all models)
−
Ohm (0 to 100, 0 to 200, 0 to 500, 0 to 1000) (STTW400)
The transmitter measures the analog signal from temperature sensors, discrete inputs, millivolt or ohm
values and transmits a digital output signal proportional to the measured value for direct digital
communications with systems.
The discrete input channels support voltage-free floating contacts. Maximum ON contact resistance is 300
ohms. Minimum OFF contact resistance is 5000 ohms.
The Process Variable (PV) is available for monitoring and alarm purposes. The cold junction temperature
is also available as a fourth channel PV. Available PV update rates are 1, 5, 10, 30 seconds and are set on
Wireless Builder. Slower update rates extend battery life.
Figure 1 shows a block diagram of the XYR 6000 Temperature transmitter's operating functions.
CH 1
Input
TC
CH 2
RTD
mV
Ohm
CH 3
2 OneWireless XYR 6000 Temperature and Temperature/Discrete Input Transmitter User's Manual
Measurement
Board
Multi-
A/D
plexer
Configuration
Data

Figure 1 XYR 6000 Functional Diagram

Radio
Board
EEPROM
Micro- Micro-
processor processor
EEPROM
Battery
Electronics Housing
Antenna
Rev. 3
6/24/08