The XC-6000EM MercSampler is an automated sorbent trap monitoring console for continuous paired sampling of vapor-phase mercury emissions from stationary combustion sources in accordance with US EPA Performance Specification 12B. It simplifies sampling by automating data acquisition, sample flow adjustments, leak checks, calculations, temperature control, and calibrations, with data easily transferred to a Windows-based PC through Ethernet and monitored remotely via Modbus. The console controls the sample flow rate proportional to the stack flow rate to determine the standardized volume extracted through each sorbent trap, using dual diaphragm vacuum pumps with proportional valves and mass flow sensors. RISC-based microcontroller firmware provides autonomous decision-making and precise control of the console even when a laptop or PC is not connected.

• Fully automated paired sorbent trap sampling compliant with EPA PS 12B
• Proportional or constant flow sampling with mass flow sensors and voltage sensitive orifice valves
• Dual positive-displacement dry gas meters with optical encoders and 8-digit LCD display
• Customer-friendly software and firmware with easy data export to text and CSV files
• Configurable system alarms with dry contact closure/piezo alert and remote test pause/resume input
• Ethernet communications with optional TCP/IP Modbus connectivity to a DAS

Dry Gas Meters

Parameter	Specification
Type	Model SK25EX series, positive displacement type
Displacement	0.7 liter per revolution
Sensor	Optical encoder sensor with quadrature pulse output
Display	8 digit LCD Display, 2 cc resolution

Sample Pumps

Parameter	Specification
Type	BTC Diaphragm, Brushless Motor - 12 Vdc, 20" Hg Vacuum, 10,000 hour MTBF, 3900 RPM, Max. PSIG 24"

Sample Flow Control

Parameter	Specification
Manifolds	Stainless steel sample manifolds fitted with mass flow sensors, vacuum sensors, and proportional valves
Sampling Modes	Proportional or constant flow sampling
Mass Air Flow	Proportional flow control, 100 to 2000 ccm, port style, manifold mount
Proportional Valve	Voltage Sensitive Orifice (VSO), 12 Vdc

Data Acquisition Control Board (DAC)

Parameter	Specification
Microcontrollers	Enhanced Flash 16 bit RISC based microcontrollers; main and Digital Signal Processing (DS). Real time clock with auto backup and write protection to external SRAM
A/D Converter	High Speed 14 bit A/D convertor with parallel DSP interface
Data Storage	SD Memory Card for data storage – stores up to 99 tests (30 day test runs). Embedded Ethernet Port with full TCP/IP Protocol and 256 bit encryption
USB	USB 2.0 Comm Input connection

Thermocouple Multiplexer

Parameter	Specification
Inputs	Accepts Type K Thermocouple inputs; input protection includes gas discharge tubes for ESD and surge protection
Microcontrollers	11 Pic Microcontrollers, 1 for each channel & MUX circuitry
MUX Circuitry	Receives multiple inputs and transmits selected output
Isolated Channels	10 microcontrollers, one for each optically isolated channel

Integrated Temperature Control

Parameter	Specification
Control	Designed into DAC for probe/trap heat control output via 25 amp SSR

Sensors

Parameter	Specification
Barometric Pressure	600 to 1100 mbar, 17.7 to 32.4" Hg, temperature compensated, amplified output
Vacuum	0 to 30" Hg, 0 to 101 kPa, 2% accuracy

Communications

Parameter	Specification
PC Interface	PC user interface via Ethernet
Remote Access	Remote access and control via onboard configurable router to owners Network Computer
Modbus	Optional TCP/IP MODBUS (ASCII or RTU) communications to the DAS
DAS Interface	Optional interface to DAS system via TCP/IP Modbus

Physical Specifications

Parameter	Specification
Weight	34 lbs. (15.5 Kg)
Dimensions (HxWxD)	14" x 19" x 15.5" (35.56 cm x 48.26 cm x 39.37 cm)
Installation	19" Standard Rack Mount. Available 8U transport case, Shock Mount Rack or Weather Resistant Aluminum Cabinet configurations

Models

Parameter	Specification
XC-6000EM	120V/60Hz
XC-6000EMV	240V/50Hz

XC-6000EM Specifications  Download