HM-1400 TRX
Total mercury analyzer
Extractive Automatic Measuring System (AMS) for continuous total mercury monitoring (CMM) in stack gas or process gas.
Overview
- analyser using extractive measuring principle
- analyser does not require failsafe instrument air
- conversion of Hgx to Hg0 inside a thermal reactor, separated from the photometer
- detection of Hg0 by help of a dual beam UV CVAAS photometer
- no extremely heated optical components
- simple operation by keypad-display
- simple maintenance, simple exchange of components
- test gas generator as an option
- many installed units in Europe
- more than 20 years experience in Hg monitoring
Applications
- Waste incineration plants (municipal, industrial, clinical waste)
- Sewage sludge incineration
- Hazardous waste incineration plants
- Steelworks with scrab metal reconditioning
- Contaminated soil burning plants
- Crematoriums
- Mercury mines and refineries
- Fluorescent light bulb recycling plants
Technical Data
| measured component | concentration of total Hg in sample gas, indicated as Hg° (elemental) in ug/Nm³ (2) |
| sample gas | ambient air, stack gas, process gas |
| flow speed | 0 .. 10 / 20 / 40 m/s (3) |
| stack diameter | > 0,5 m (4) |
| sample gas temperature | -20 to 120 / 150 / 200 / 250 / 300°C, others on request (5) |
| sample gas pressure (relative) | -50 to +20 hPa others on request |
| sample gas moisture | 0 - 100 % rel. humidity |
| ambient temperature | - 20 to 50 °C at sample probe location, + 5 to 40 °C at installation place of the analyser; others on request (6) |
| conformities | 000/76/EG WID / 17. BImschV 2001/80/EG LCPD / 13. BImschV EN 14181, EN 15267-3 40 CFR 60 US EPA PS 12a (1) |
| Measuring principle | determination of the Hg° concentration of the extracted and conditioned sample gas by help of a dual beam UV CVAAS photometer. Ionic Hg-compounds are converted to Hg° inside a thermal converter. |
| construction | extractive analyser |
| system components | HM-1400 S T sample tube, heated or not heated (5) HM-1400 S P sample probe with heated filter HM-1400 PL neated sample line HM-1400 TRX analyser HM-AKM test gas generator (1) |
| reference material (testgas) | zero: ambient air (automatic, adjustment and system check every 2h) span check: HgCl2 testgas, generated by an external test gas generator(1) or by a stationary HM-AKM test gas generator(1) as an alternative: Hg° test gas generator HM-1400 TR81(1) |
| distance probe - HM-1400 TRX | 1 - 36m others on request (7) |
| power supply | typ. one single supply at HM-1400 TRX analyser 230/400 V 3x25A, N, PE 50/60 Hz max. 10kVA or 230V 1x25A, N, PE 50/60 Hz max. 5kVA (7) |
| measuring range | 0 to ... 400 ug/Nm³, any range 0 .. X within the measuring range can be assigned to the analog outputs. The certified ranges are: 0-45 / 0-75 ug/Nm³ others on request |
| sample flow rate | minimum: 70 l/h normal: 100 l/h maximum: 130 l/h |
| delay time | typ. < 170 s (at V/t = 70l/h and with 10m sample line) |
| resolution of the display | 0,1 ug/Nm³ |
| combined uncertainty EN 14181 / EN ISO 14956 / EN 15267-3 | < 1,3 ug/m³ Hg°, the uncertainty is dependent on the sample composition and the uncertainty of the standard reference method used for calibration |
| process connection | D-FL 100 E welding pipe with flange, similar to DN65 PN6, pipe OD=76 |
| dimensions | sheet steel cabinet, RAL 7035, hxwxd ca: 1700 x 800 x 500mm, others on request |
| signal transfer | 2 x 4-20 mA, max 500 Ohm (or 3 x 4-20 mA, max 500 Ohm (8)) 3 x relay contact NO (or 8 x relay contact (8)) status: failure, maintenance, standby 1 x status input (or 5x status input (8)) Standby RS485 / Modbus (Signal converter) (1) |
| operation | operating panel in front door with display, remote access for DURAG service by TCP/IP as an option (1) |
| weight: | approx. 220 kg |
| protection | IP 54 |
| cable inlet | power supply and signals through cable glands from the top or through base, connection of the heated sample line from the top or from the left side |
| sample probe | sample probe with inside heated filter element and inlet for heated test gas, PT 100 temperature sensor, controlled by HM-1400 TRX, 230V L, N, PE 50/60Hz, 650VA |
| sample tube | variations: not heated, length 1000 or 1500mm heated, length 180, 600, 1000 or 1500mm power 230VAC L,N,PE 600/800/1200 W / PT 100 supplied by HM-1400 TRX (1) |
| sample line | temperature controlled 200°C heated sample line, IP 65 power supply 230V L,N,PE, 50-60 Hz, 90-100 W/m |
| subject to technical modifications! | |
| (1) | Variants / Options |
| (2) | The HM-1400 TRX extracts sample from the process, removes H2O by condensation inside a cooler and standardizes the result with respect to T and P. |
| (3) | The measuring result is independent from the flow speed inside the stack. |
| (4) | The measuring system extracts the sample gas from a single point inside the stack. |
| (5) | If the stack gas temperature is < 200 °C then a heated sample tube is recommended, because the species HgCl2 is absorbed by surfaces with T < 140°C. |
| (6) | Outdoor installation at T < 5°C without walk in shelter is not recommended, because maintenance personal can hardly perform proper maintenance if they are not protected! |
| (7) | The heated probe, the heated sample tube and the heated line are connected and supplied by HM-1400 TRX. The max. length of the heated line is determined by the max. power consumption (90-100W/m). During certifications tests a 10m line was used. Longer lines will cause increase of the delay time by ca. 0,5 s/m |
| (8) | Variation acc to US EPA PS12a with integrated reference gas generator |