Megmeet MTCV Series User manual

1
MTCV series thermostat quick start
Note: this manual takes MTCV-16NT as an example. Other models are
subject to the actual model.
Thank you for using MTCW series thermostat of Megmeet . Before using
the product, please carefully read this booklet so as to better understand
it, fully use it, and ensure safety.
This user manual is to offer you a quick guide to the design, installation,
connection and maintenance of MTCV series thermostat, convenient for
on-site reference. Briefly introduced in this booklet are the hardware
specs, features, and usage of MTCV series thermostat, plus the
optional parts and FAQ for your reference.
For more information, see the MTCV series thermostat user manual.
This manual is suitable for the following members of the MTCV series:
MTCV-16-NT
MTCV-08-NT
MTCV-04-NT
Version：1.0
Data：2018-12-07
BOM：
1. Appearance and part name
2. Introduction
current detection：N:No current detection input
C:Current detection input
Output method：R:Relay output
T:Transistor output
V:Voltage output
I:Current output
M:Mixed output
N:No output
Special function ：Depending on the function, use 1, 2, 3...... To
distinguish.
3. Installation
3.1Environment temperature
Ambient temperature range: -5℃~ 55℃.
3.2Installation occasion
◆Please do not use it in the environment where there are flammable,
explosive, corrosive gases or liquids.
◆Please do not mix metal or wire debris into the product, or it may
cause fire or malfunction.
◆In order not to hinder the heat dissipation, please keep the air
circulation around the product.
◆Use of environmental humidity <85%RH, no condensation.
3.3 Installation method
The product shall be installed horizontally on the back panel of the
electric cabinet, and the distance between the product and the
equipment or cabinet wall above and below shall be no less than 20cm.
Installation in other directions is not conducive to the product itself heat,
and the product under the heat must not have equipment.
Install and fix with DIN slot
DIN slot of 35mm width can be used for installation under low vibration
environment. Open the DIN clasp at the bottom of the module and clip
the bottom of the module on the DIN guide rail; The rotating module is
close to the DIN guide rail and close the DIN clasp. Carefully check
whether the DIN clasp on the module is tightly fixed with the DIN guide
rail.
Install and fix with screws
In case of large vibration, screws must be used to fix the module. M3
can be used to fix the module on the back plate.
The overall size and mounting hole size of this module are shown in
the following. Figure.
3.4 Cable connection and specification
When wiring products, it is recommended to use multiple copper wires
and prefabricate insulated terminals to ensure the quality of wiring. The
recommended cross sectional area and type of wire are shown in the
following table.
Cable
Positi
on
Allowed
cable
number
Recommended
stripping
length
installa
tion
Communication
terminal（3PIN）
Side
12～30AWG
6.5mm
Screw
mounting
Communication
terminal(2PIN)
Side
12～30AWG
6.5mm
Screw
mounting
Ethernet（RJ45）
Top
Ethernet
cable
/
In-line
installa
tion
User input terminal
（12PIN）
Top
16～26AWG
10～15mm
In-line
installa
tion

2
Communication
terminal（6PIN）
Top
16～26AWG
10～15mm
In-line
installa
tion
For security (to prevent electric shock and fire accident), and reduce
the noise, the module of grounding terminal shall be in strict
accordance with the national electrical code requirements, grounding
resistance should be less than 100 Ω. When more than one module
is grounded, single point grounding should be adopted. The ground
wire cannot form a circuit. As shown in the following figure
4. Terminal Introduction
4.1User terminal
MTCW-12-NT terminal silk screen
User terminal definition table
Remark
Description
24V+,24V-
Input power DC 24V
Ground
A0，B0
RS485（COM0）
T1+～T16+
Channels 1 to 16 are positive for thermocouple
signal input
T1-～T16-
Channels 1 to 16 are negative for thermocouple
signal input
CJ+,CJ-
The external cold junction compensation is
positive and negative. (Note)
Y01～Y08，COM0
Switch output port channel 1～8
Y09～Y16，COM1
Switch output port channel 9～16
Note：CJ+ and CJ- are external thermocouple cold end compensation
terminals (optional), connected with PT100 thermal resistance. When the
connection is not connected or the measured value exceeds the range of
-20℃~ 80℃, it is automatically switched to the internal cold end
compensation.
4.2 User connection mode
5 things to pay attention to when wiring:
1All the input and output signal connections and communication
cables shall be shielded layer cables.
2The thermocouple signal uses the compensation line, the dividing
number should be consistent, positive and negative to
correspond.
3The signal cable should be away from other cables that may cause
electromagnetic interference, such as the unavoidable set of
metal pipe or wire slot.
4The metal case of thermocouple should be grounded reliably.
5The thermostat grounding PGND should be good grounding.
5. Electrical indicator
5.1 Power indicator
Item
Unit
Min
value
Typical
value
Max
value
Remark
Input voltage
range
Vdc
20
24
30
Normal start-up and
working range
Input current
A
/
0.08
/
Normal temperature
rated full load
5.2 Performance indicators
Item
Indicator
Input
signal
Thermocoup
le type
K、J、E、N、T、R、S、B
Input
method
Transistor
output with
open gate
Power supply voltage circuit: 5V ~ 24V; The
maximum circuit power supply voltage circuit:
30V; Loop current: 0.3A /24Vdc; Leakage current
when open：＜0.1mA/30Vdc；Minimum load：5mA
（5Vdc～24Vdc）
Control
cycle
Fast
1～100，the unit is 0.1s.The specific value is
determined by the characteristics of the
temperature controlled object
Slow
1～100，the unit is 1s.The specific value is
determined by the characteristics of the
temperature controlled object
Control method
ON/OFF，Hand，PID
Rated
Type K
－100℃～1200℃（－148℉～2192℉）

3
Item
Indicator
temperat
ure range
Type J
－100℃～1200℃（－148℉～1112℉）
Type E
－100℃～850℃（－148℉～1562℉）
Type N
－100℃～1200℃（－148℉～2192℉）
Type T
－200℃～300℃（－328℉～572℉）
Type R
0℃～1600℃（32℉～2912℉）
Type S
0℃～1600℃（32℉～2912℉）
Type B
400℃～1800℃（752℉～3272℉）
Accuracy
Thermoco
uple
Full range ±0.3％
Environmental
compensation error
<1℃(external cold end compensation)
Isolation
Isolation between sampling channel and power
supply, isolation between sampling channel and
output, isolation between channels and
channels, communication and power supply
isolation
5.3 Communication specification
Name
Communication
protocol
Port remark
Communication
method
Communicatio
n port
Modbus RTU slave
A0，B0
RS485
5.4 Indicator description
Name
Status
Indicator
PWR
ON
24V power supply is normal
RUN
Flashes quickly
（10Hz～15Hz）
Normal
Flashes slowly
（0.5Hz～1Hz）
There is an error, see # 3612, # 3613
for the error status
COMM0
Flashes
Normal communication
Y01～Y16
ON
Corresponding channel output is ON
6. BFM
MODBUS supports 01, 03, 05, 06 and 16 functions. 01, 05 function
code to the bit register operation, 03, 06, 16 function code to the
integer register operation, if read the undefined register, will get 0 value.
Up to 100 BFM units can be read or written at a time.
Function
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH13
CH14
CH15
CH16
Measured value（PV）
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
Heating side
control output（MV）
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
Multi-segment
control of current
execution segment
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
Working status
word
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
Digital filter set
of one step
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
D0
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
D1
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
A0
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
A1
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
Input type
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
Set value（SV）
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
Proportional cycle
time
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
Heat side
proportional band
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
Heat side integral
time
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
Heat side
derivative time
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
Control action
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
Heat/cool action
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
Hand output value
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
Adjust sensitivity
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
Auto-tuning
deviation
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
Step 1 temperature
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
Step 2
1temperature
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
Step 3 temperature
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
Step4 temperature
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
Step 5 temperature
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
Step 6 temperature
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
Step 7 temperature
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
Step 8 temperature
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
Step 1 time
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
Step 2 time
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
Step 3 time
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
Step 4 time
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
Step 5 time
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
Step 6 time
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
Step 7 time
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
Step 8 time
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
Repeat start step
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
Repeat end step
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
Repeat count
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
The value alarm 1
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
The value alarm 2
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
The value alarm 3
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
The value alarm 4
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
Cooling side
control output
(MV)
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
Overlap/Deadband
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
Undershoot
suppresion factor
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
Heat side
proportional band
adjusting factor
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
Heat side integral
3196
3197
3198
3199
3200
3201
3202
3203

4
band adjusting
factor
3204
3205
3206
3207
3208
3209
3210
3211
Heat side
derivative band
adjusting factor
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
Cool side
proportional band
adjusting factor
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
Cool side integral
band adjusting
factor
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
Cool side
derivative band
adjusting factor
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
PID group
selection
5735
5736
5737
5738
5739
5740
5741
5742
5743
5744
5745
5746
5747
5748
5749
5750
Regional action
6855
6856
6857
6858
6859
6860
6861
6862
6863
6864
6865
6866
6867
6868
6869
6870
Region 1
6887
6888
6889
6890
6891
6892
6893
6894
6895
6896
6897
6898
6899
6900
6901
6902
Region 2
6919
6920
6921
6922
6923
6924
6925
6926
6927
6928
6929
6930
6931
6932
6933
6934
Region 3
6951
6952
6953
6954
6955
6956
6957
6958
6959
6960
6961
6962
6963
6964
6965
6966
Regional
hysteresis
6983
6984
6985
6986
6987
6988
6989
6990
6991
6992
6993
6994
6995
6996
6997
6998
Operation output
ratio
6791
6792
6793
6794
6795
6796
6797
6798
6799
6800
6801
6802
6803
6804
6805
6806
Manipulation
output offset
6823
6824
6825
6826
6827
6828
6829
6830
6831
6832
6833
6834
6835
6836
6837
6838
Output selection
7339
7340
7341
7342
7343
7344
7345
7346
7347
7348
7349
7350
7351
7352
7353
7354
Heat side
proportional band
1
6023
6024
6025
6026
6027
6028
6029
6030
6031
6032
6033
6034
6035
6036
6037
6038
Heat side
integration time 1
6055
6056
6057
6058
6059
6060
6061
6062
6063
6064
6065
6066
6067
6068
6069
6070
Heat side
derivative time 1
6087
6088
6089
6090
6091
6092
6093
6094
6095
6096
6097
6098
6099
6100
6101
6102
Heat side
proportional band
2
6183
6184
6185
6186
6187
6188
6189
6190
6191
6192
6193
6194
6195
6196
6197
6198
Heat side
integration time 2
6215
6216
6217
6218
6219
6220
6221
6222
6223
6224
6225
6226
6227
6228
6229
6230
Heat side
derivative time 2
6247
6248
6249
6250
6251
6252
6253
6254
6255
6256
6257
6258
6259
6260
6261
6262
Heat side
proportional band
3
6343
6344
6345
6346
6347
6348
6349
6350
6351
6352
6353
6354
6355
6356
6357
6358
Heat side
integration time 3
6375
6376
6377
6378
6379
6380
6381
6382
6383
6384
6385
6386
6387
6388
6389
6390
Heat side
derivative time 3
6407
6408
6409
6410
6411
6412
6413
6414
6415
6416
6417
6418
6419
6420
6421
6422
Heat side
proportional band
4
6503
6504
6505
6506
6507
6508
6509
6510
6511
6512
6513
6514
6515
6516
6517
6518
Heat side
integration time 4
6535
6536
6537
6538
6539
6540
6541
6542
6543
6544
6545
6546
6547
6548
6549
6550
Heat side
derivative time 4
6567
6568
6569
6570
6571
6572
6573
6574
6575
6576
6577
6578
6579
6580
6581
6582
Cool side
proportional band
1
5767
5768
5769
5770
5771
5772
5773
5774
5775
5776
5777
5778
5779
5780
5781
5782
Cool side
integration time 1
5799
5800
5801
5802
5803
5804
5805
5806
5807
5808
5809
5810
5811
5812
5813
5814
Cool side
derivative time 1
5831
5832
5833
5834
5835
5836
5837
5838
5839
5840
5841
5842
5843
5844
5845
5846
Cool side
proportional band
2
5863
5864
5865
5866
5867
5868
5869
5870
5871
5872
5873
5874
5875
5876
5877
5878
Cool side
integration time 2
5895
5896
5897
5898
5899
5900
5901
5902
5903
5904
5905
5906
5907
5908
5909
5910
Cool side
derivative time 2
5927
5928
5929
5930
5931
5932
5933
5934
5935
5936
5937
5938
5939
5940
5941
5942
Cool side
proportional band
3
5959
5960
5961
5962
5963
5964
5965
5966
5967
5968
5969
5970
5971
5972
5973
5974
Cool side
integration time 3
5991
5992
5993
5994
5995
5996
5997
5998
5999
6000
6001
6002
6003
6004
6005
6006
Cool side
derivative time 3
6119
6120
6121
6122
6123
6124
6125
6126
6127
6128
6129
6130
6131
6132
6133
6134
Cool side
proportional band
4
6151
6152
6153
6154
6155
6156
6157
6158
6159
6160
6161
6162
6163
6164
6165
6166
Cool side
integration time 4
6279
6280
6281
6282
6283
6284
6285
6286
6287
6288
6289
6290
6291
6292
6293
6294
Cool side
derivative time 4
6311
6312
6313
6314
6315
6316
6317
6318
6319
6320
6321
6322
6323
6324
6325
6326
Energy saving time
proportional
action
7111
7112
Energy saving
delay time
7113
7114
7115
7116
7117
7118
7119
7120
7121
7122
7123
7124
7125
7126
7127
7128
Main side /
auxiliary side
selection
7145
7146
Time ratio
secondary channel
7147
7148
7149
7150
7151
7152
7153
7154
7155
7156
7157
7158
7159
7160
7161
7162
Control start /
stop (lower four
bits are valid)
3628
3629
3930
3931
Set the rate of
change to limit the
rise
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
Set the rate of
change to limit the
decline
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
Selection of
temperature
control object
characteristics
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
Control algorithm
selection
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
Auto-tuning
algorithm
6695
6696
6697
6698
6699
6700
6701
6702
6703
6704
6705
6706
6707
6708
6709
6710
PID output upper
limit setting
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
PID output lower
limit setting
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
Error status word
(system
error)
3612
Error status word
(broken even
error)
3613
Set value range
error address
3616
3617
Channel
characteristics
confirmation
command
3624
3625
Auto-tuning
setting value
3637
3640
Reset
3640
Change settings
allowed
3644
CH1-CH16
multi-stage
control execution
3648
3649

5
flag
Alarm 1 mode
setting
3652
Alarm 2 mode
setting
3656
Alarm 3 mode
setting
3660
Alarm 4 mode
setting
3664
Alarm dead zone
setting
3668
Alarm delay times
3672
Operation amount
selection at alarm
6727
6728
6729
6730
6731
6732
6733
6734
6735
6736
6737
6738
6739
6740
6741
6742
Operation amount
at the time of
alarm
6759
6760
6761
6762
6763
6764
6765
6766
6767
6768
6769
6770
6771
6772
6773
6774
External input
status
3680
3681
Cold junction
temperature
3620
Module parameter
saving
3684
Module software
version
information
3688
Thermostat
identification
code
3692
System error status word（3612）
Bit status
ON（1）
OFF（0）
Bit0：Error
When any one of b1 ～ b7 is 1, this
flag is 1.
No error
Bit1：Remain
－
－
Bit2：Hardware
malfunction
AD converter or other hardware
failure, all channels AD conversion
stop
The
hardware
is normal
Bit3：Parameter
setting error
When there is an error in the
internal parameters of MTCV, this
flag will become 1.
Data
backup is
normal
Bit4：Cold junction
temperature
compensation error
Cold junction measurement
temperature abnormal
The cold
junction
is normal
Bit5：Remain
－
－
Bit6：Remain
－
－
Bit7～Bit15：Remain
－
－
Broken even error status word（3613）
Bit status
ON（1）
OFF（0）
Bit0 ~ Bit15 broken
couple detection
When the thermocouple of channel 1 ~
16 is broken, the flag bit is 1
No
channel
break
fault
7. Common problems and solutions
When the module does not work properly, please check in turn:
(1) the connection of the power line and the condition of the relevant
switches and protection appliances, so as to ensure the reliable power
supply of the module;
(2) whether the wiring of user terminals is firm;
(3) check whether the 24Vdc power supply is overloaded.
(4) check the application to ensure that the correct operation method
and parameter range are selected in the application. Special attention
should be paid to the BFM area with special operation timing.
If you still cannot work after the above check, please refer to the
following table.
Phenomenon
Possible Causes
Countermeasures
POWER and
other LED are
off
Loss of power supply or low
voltage
Check the power status and
eliminate
Power switch off or fuse
blown
Check the condition of the
switch, wire or fuse and
eliminate it
Abnormal power wiring
Power supply is damaged
Check and confirm: whether
the voltage between 24V +
and 24V- terminals is within
the normal range
POWER LED
flashes
intermittently
Unstable power supply
Module damaged
RUN LED is off
or on
Module shutdown or crash
Replace the module
RUN LED
flashes slowly
Possible system error
Please check the 3612, 3613
Broken couple error
The output
cannot be
turned off
(OFF)
External wiring contact
short circuit
Check connection and
troubleshoot
The output transistor is
damaged
Replace the module
The output
status indicator
is inconsistent
with the actual
output status
The output transistor is
aging or damaged, or the
indicator is damaged
The serial port
cannot
communicate
normally
The cable connection is
poor, or the signal
properties of the connection
line are wrong, such as A0
and B0 are reversed
Connect the positive and
negative signal lines correctly
Inconsistent setting of
communication
master-slave
characteristics, such as
baud rate, parity, data bits,
address
Set the communication
parameters to be consistent
The communication protocol of
the master and slave is
inconsistent, set the
communication protocol to be
consistent
1．Warranty scope refers to the programmable controller body.
2．The warranty period is 18 months, during the warranty period of
normal use, the product failure or damage, our company free
maintenance.
3．The warranty period starts from the date of production. The
machine code is the only basis to judge the warranty period. The
equipment without machine code shall be treated as overinsured.
4. Even within the warranty period, a certain maintenance fee will be
charged if:
(1)Failure to operate according to the user's manual;
(2)Machine damage caused by fire, flood, abnormal voltage, etc.
(3)Damage caused when a programmable controller is used for
unusual functions.
(4)Self-disassembly programmable controller
5. The service fee shall be calculated according to the actual cost. If
there is another contract, the contract shall take precedence.
6.If you have any problem, you can contact the agent or contact us
directly.
SHENZHEN MEGMEET CONTROL TECHNOLOGY CO., LTD
Add：5th Floor, Block B Unisplendour Information Harbor, Langshan Road,
Shenzhen
Tel：[phone]
fax：[phone]
Postcode：518057
Web：www.megmeet-ia.com